List of American Aero Squadrons

• Patrols in the Toul, Aisne-Marne, Vesle and Toul-Verdun Sectors
• St. Mihiel Offensive Campaign
• Aisne-Marne Defensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Most senior organization in the United States Air Force
• Returned to the United States in August 1919, stationed at Park Field, Tennessee
• Constituted in the Army Air Service as the 1st Squadron (Observation) on March 14, 1921; Re-designated as the 1st Observation Squadron on November 15, 1922; Reorganized and re-designated 1st Bombardment Squadron on March 1, 1935;^[3]

Currently: 1st Reconnaissance Squadron, Beale AFB, California^[4]

• Constituted in the Air Service, United States Army on June 3, 1919 at Rockwell Field, California, as the 2d Aero Squadron; Transferred on December 24, 1919 to the Philippines assigned to the Philippine Department.
• Constituted in the Army Air Service as the 2d Squadron (Observation) on March 14, 1921; Consolidated on April 8, 1924 with the 2d Aero Squadron; Re-designated as: 2d Observation Squadron on January 25, 1923^[3]
• Stationed at Nichols Field, Philippines on December 7, 1941, subsequently wiped out in the 1941–1942 Battle of the Philippines; Inactivated April 2, 1946.; Re-activated January 1, 1949.

Currently: 2d Air Refueling Squadron, McGuire AFB, New Jersey<^[4]

• Constituted in the Air Service, United States Army on May 13, 1919 at Mitchel Field, New York, as the 3d Aero Squadron; Transferred on July 5, 1919 to the Philippines assigned to the Philippine Department.
• Constituted in the Army Air Service as the 3d Squadron (Pursuit) on March 14, 1921; Re-designated as the 3rd Pursuit Squadron on January 25, 1923
  Consolidated on April 8, 1924 with the 3rd Aero Squadron^[3]
• Stationed at Clark Field, Philippines on December 7, 1941, subsequently wiped out in the 1941–1942 Battle of the Philippines; Inactivated April 2, 1946.
• Re-designated 3d Tactical Fighter Squadron on March 12, 1973; Activated on March 15, 1973'

Currently: 3d Flying Training Squadron, Vance AFB, Oklahoma^[4]

• Constituted in the Air Service, United States Army on June 23, 1919 at Hazelhurst Field, New York, as the 4th Aero Squadron; Transferred on January 24, 1920 to Luke Field, Hawaii assigned to the Hawaiian Department.
• Constituted in the Army Air Service as the 4th Squadron (Observation) on March 14, 1921; Re-designated as the 4th Observation Squadron on January 25, 1923
• Consolidated on April 8, 1924 with the 4th Aero Squadron; Reorganized and re-designated 4th Reconnaissance Squadron (Medium Range) on January 25, 1938^[3]
• Assigned to Hickam Field, Hawaii on December 7, 1941, largely destroyed during the Pearl Harbor Attack; Re-designated 394th Bombardment Squadron (Heavy) on April 22, 1942

Currently: 394th Combat Training Squadron, Whiteman AFB, Missouri^[4]

• Constituted in the Air Service, United States Army on June 23, 1919 at Hazelhurst Field, New York, as the 5th Aero Squadron; Transferred in November 1919 to Mitchel Field, New York
• Constituted in the Army Air Service as the 5th Squadron (Observation) on March 14, 1921; Re-designated 5th Observation Squadron on January 25, 1923; Consolidated in April 1924 with the 5th Aero Squadron^[3]

Currently: 5th Reconnaissance Squadron, Beale AFB, California^[4]

• Constituted in the Army Air Service as the 6th Squadron (Pursuit) on March 14, 1921; Re-designated as the 6th Pursuit Squadron on January 25, 1923; >Re-designated: 6th Pursuit Squadron on January 25, 1923^[3] Re-designated: 6th Night Fighter Squadron on January 17, 1943; Inactivated on February 20, 1947^[4]

• Constituted in the Army Air Service as the 7th Squadron (Observation) on March 14, 1921; Re-designated: 7th Observation Squadron on January 25, 1925; Participated in the “Goodwill Flights” to El Salvador and Nicaragua March 13–19, 1935, to Columbia December 14–18, 1936, to Guatemala February 8–11, 1938 and El Salvador April 19–22, 1938. Flew mercy missions to support earthquake relief efforts in and near Santiago, Chile, January 28 – February 13, 1939^[3] Re-designated: 397th Bombardment Squadron (Heavy) on May 11, 1942; Inactivated on November 1, 1946.^[4]

• Patrols in the Toul Sector
• St. Mihiel Offensive Campaign
• Aisne-Marne Defensive Campaign^[2]

• Returned to the United States in June 1919 and assigned to Kelly Field, Texas; Re-designated 8th Surveillance Squadron; Transferred on August 13, 1919, less Flight B, to the U. S. Army Airdrome, McAllen, Texas. Participated in the United States Army Border Air Patrol with Mexico August 1919 – June 1921 and flood relief operations in the Rio Grande Valley in June 1922. Flight B transferred August 13, 1920 to Pope Field, North Carolina.
• Constituted in the Army Air Service as the 8th Squadron (Attack) on March 14, 1921; Entire squadron transferred July 2, 1921 to Kelly Field, Texas. Re-designated as the 8th Attack Squadron March 25, 1923; Reorganized and re-designated 8th Bombardment Squadron on December 1, 1939^[3]

Currently: 8th Special Operations Squadron, Hurlburt Field, Florida^[4]

• Patrols in the Toul Sector
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Returned to the United States in June 1919 and assigned to March Field, California
• Constituted in the Army Air Service as the 9th Squadron (Observation) on March 14, 1921; Inactivated on June 29, 1922 at March Field; Re-designated as the 9th Observation Squadron on January 25, 1923. Re-designated as the 9th Bombardment Squadron March 24, 1923; Organized by June 1929 in the Regular Army Reserve at Kelly Field, Texas. Conducted annual summer training at Kelly Field; Activated on April 1, 1931, less Reserve personnel, at March Field, California. Transferred on December 5, 1934 to Hamilton Field, California. Re-designated as the 9th Bombardment Squadron (Heavy) on December 6, 1939; Transferred on September 7, 1940 to Fort Douglas, Utah. Transferred on January 13, 1941 to Salt Lake City, Utah.
• Ground elements departed from the port of San Francisco on November 6 on an army transport en route to the Philippines. Aircraft and crews began departing Muroc Field, California, on December 6 en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor^[3]

Currently: 9th Bomb Squadron, Dyess AFB, Texas^[4]

erroneously demobilized: Jun 1919 at Mitchell Field, New York; re-constituted at Bolling Field, D.C., Jul 1919; final demobilization December 31, 1919.^[5]

• Patrols in the Toul Sector
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Returned to the United States in June 1919, assigned to Fort Bliss, Texas; Participated in the Mexican Border Patrol August–November 1919
• Constituted in the Army Air Service as the 11th Squadron (Observation) on March 14, 1921; Re-designated as the 11th Bombardment Squadron on January 25, 1923; Conducted bombing tests on obsolete warships off Chesapeake Bay September 5, 1923; Transferred on December 5, 1934 to Hamilton Field, California. Transferred on September 2, 1940 to Fort Douglas, Utah. Transferred on January 18, 1941 to Salt Lake City, Utah.
• Ground elements departed from Salt Lake City November 13, 1941 and sailed from the port of San Francisco on November 21 on an army transport en route to the Philippines. Aircraft and crews began departing Muroc Field, California, on December 6 en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor December 7, 1941;^[3] fought in the Pacific Theater during World War II; Inactivated on November 2, 1945.
• Consolidated (January 11, 1982) with 11th Pilotless Bomber Squadron, Light, which was constituted on June 17, 1954; Activated on September 1, 1954; Re-designated 11th Tactical Missile Squadron on June 8, 1955; Re-designated 11th Bomb Squadron on June 24, 1994

Currently: 11th Bomb Squadron, Barksdale AFB, Louisiana^[4]

• Patrols in the Toul, Baccarat (Luneville), Aisne-Marne, and Vesle Sectors
• Aisne-Marne Offensive Campaign
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Returned to the United States in June 1919, assigned to Scott Field, Illinois; Transferred on October 13, 1919 to Kelly Field, Texas, then on January 9, 1920 to Biggs Field, Texas. Participated in the Mexican Border Patrol January 1920 – May 1921 and Forest Fire Patrol May–August 1921
• Constituted in the Army Air Service as the 12th Squadron (Observation) on March 14, 1921; Re-designated 12th Observation Squadron on January 25, 1923; Flew reconnaissance missions in April 1929 for the 10th Cavalry in the vicinity of Nogales, New Mexico, during the Escobar-Topete Revolution.^[3]

Currently: 12th Reconnaissance Squadron, Beale AFB, California^[4]

• Patrols in the Toul and Verdun Sectors
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Demobilized on March 29, 1919

• Constituted in the Regular Army on June 3, 1919 at Rockwell Field, California, as the 104th Aero Squadron; Transferred on July 6, 1919 to Scott Field, Illinois. Transferred on November 6, 1919, less one flight, to Biggs Field, Texas. One flight operated from Camp Marfa, Texas, until September 3, 1920. Another flight operated from Post Field, Oklahoma.
• Constituted in the Army Air Service as the 13th Squadron (Attack) on March 14, 1921; Re-designated as the 13th Attack Squadron on January 25, 1923. Inactivated on June 27, 1924 at Kelly Field; Organized in June 1924 in the Regular Army Reserve at Kelly Field, Texas. Conducted summer training at Fort Crockett, Texas; Activated on November 1, 1929, less Reserve personnel, at Barksdale Field, Louisiana;^[3] Consolidated with 13th Aero Squadron, October 16, 1936

Currently: 13th Bomb Squadron, Whiteman AFB, Missouri^[4]

• Constituted in the Army Air Corps on April 1, 1928 at Bolling Field, District of Columbia, as Air Corps Detachment, Bolling Field, and assigned to the Office of Chief of the Air Corps; re-designated March 1, 1935 as the 14th Bombardment Squadron; Consolidated on June 8, 1935 with the 14th Aero Squadron; Inactivated on September 1, 1936 at Bolling Field
  Organized by December 1937 in the Regular Army Reserve; Conducted summer training at Kelly Field, Texas
• Activated on February 1, 1940, less Reserve personnel, at Hickam Field, TH; Re-designated as the 14th Bombardment Squadron (Heavy) on November 20, 1940. Transferred by flying to Clark Field, Philippines on September 16, 1941; Transferred on December 6, 1941 to Del Monte Field, Philippines;^[3] Squadron was mostly wiped out in the 1941–1942 Battle of the Philippines, surviving personnel and aircraft transferred to Australia in December 1941, later reassigned to other units
• Inactivated on April 2, 1946; disbanded on August 19, 1949; never again activated.^[4]

• Constituted in the Army Air Service as the 15th Squadron (Observation) on March 14, 1921; Re-designated as the 15th Observation Squadron on January 25, 1923; Consolidated in 1924 with the 15th Aero Squadron; Inactivated on August 1, 1927
• Activated on May 15, 1928; Re-designated: 15th Observation Squadron (Medium) on January 13, 1942;^[3]

Currently: 15th Reconnaissance Squadron, Creech AFB, Nevada^[4]

• Constituted in the Army Air Service as the 16th Squadron (Observation) on March 14, 1921; Re-designated as the 16th Observation Squadron on January 25, 1923; Consolidated on April 8, 1924 with the 16th Aero Squadron;^[3] Re-designated 16th Reconnaissance Squadron (Bomber) on May 31, 1943; Reconstituted on September 19, 1985 and consolidated with 16th Photographic Reconnaissance Squadron as 16th Tactical Electronic Warfare Squadron

Currently: 16th Electronic Warfare Squadron, Eglin AFB, Florida^[4]

• Patrols in the St. Quentin-Arras, Amiens-Arras, and Nieuport-Ypres Sector (Belgium)
• Somme Defensive Campaign
• Somme Offensive Campaign^[2]

Demobilized: April 1, 1919

• The 147th Aero Squadron returned from AEF to Selfridge Field, Michigan in June 1919
• Constituted in the Army Air Service as the 17th Squadron (Pursuit) on March 14, 1921; Re-designated as the 17th Pursuit Squadron on January 25, 1923; Reconstituted, and consolidated (October 17, 1936) with 17th Aero Squadron
• Departed from the port of San Francisco, California, about mid-November 1940 on the U.S.A.T. Etolin and arrived in the Philippines; Transferred on December 5, 1940 to Nichols Field, Philippines;^[3] Squadron was wiped out in the 1941–1942 Battle of the Philippines, survivors reached Australia in March 1942 and were reassigned to other units, Inactivated on April 2, 1946
• Activated and organized on December 1, 1971 as 17th Wild Weasel Squadron

Currently: 17th Weapons Squadron, Nellis AFB, Nevada^[4]

• Constituted in the Army Air Service as the 18th Observation Squadron on June 10, 1922; Consolidated on March 17, 1925 with the 18th Aero Squadron; Reorganized and re-designated 40th Attack Squadron on March 1, 1935; consolidated unit re-designated as the 18th Headquarters Squadron, Bolling Field, District of Columbia.;^[3] Reconstituted and consolidated (1964) with 18th Observation Squadron (Long Range, Light Bombardment) which was constituted on March 1, 1935; Re-designated: 408th Bombardment Squadron (Medium) on April 22, 1942; Inactivated on April 29, 1946
• Re-designated 408th Bombardment Squadron (Medium) on October 6, 1958; Discontinued, and inactivated, on January 1, 1962.^[4]

• Constituted in the Army Air Service as the 19th Squadron (Pursuit) on August 30, 1921; Inactivated on June 29, 1922; Re-designated 19th Pursuit Squadron on January 25, 1923 and activated May 1, 1923;^[3] Re-designated: 19th Fighter Squadron on May 15, 1942

Currently 19th Fighter Squadron, Hickam Field, Hawaii^[4]

• Patrols in the Toul Sector
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Returned to the United States in June 1919, assigned to Ellington Field, Texas; Constituted in the Army Air Service as the 20th Squadron (Bombardment) on August 30, 1921; Re-designated as the 20th Bombardment Squadron on January 25, 1923. Conducted bombing tests on obsolete warships off Chesapeake Bay September 5, 1923^[3]

Currently: 20th Bomb Squadron, Barksdale AFB, Louisiana^[4]

• Constituted in the Army Air Service as the 21st Observation Squadron on March 24, 1923, consolidated with 21st Aero Squadron, same date; Demobilized on October 1, 1933. Reconstituted and consolidated with the 21st Observation Squadron on December 2, 1936; The 21st Observation Squadron was constituted in the Army Air Forces on March 1, 1935;^[3] Re-designated: 411th Bombardment Squadron (Heavy) on April 22, 1942;Inactivated on April 15, 1946
• Consolidated (September 19, 1985) with 911th Air Refueling Squadron, Heavy, which was constituted on May 28, 1958

Currently: 911th Air Refueling Squadron, MacDill AFB, Florida^[4]

• Patrols in the Amiens and Toul Sectors
• Somme Defensive Campaign
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Demobilized: June 17, 1919

• The 135th Aero Squadron returned from AEF to Post Field, Oklahoma in June 1919
• Constituted in the Army Air Service as the 22d Squadron (Observation) on March 14, 1921; Re-designated as the 22nd Observation Squadron on January 25, 1923; Consolidated on April 17, 1937 with the 22d Aero Squadron^[3]

Currently: 22d Intelligence Squadron, Fort George G. Meade, Maryland^[4]

• Constituted in the Army Air Service as the 22d Squadron (Observation) on March 14, 1921; re-designated 23d Bombardment Squadron on January 25, 1923 Consolidated on April 8, 1924 with the 23d Aero Squadron^[3]

Currently 23d Bomb Squadron, Minot AFB, North Dakota^[4]

• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Demobilized on October 1, 1919

• Constituted in the Army Air Service as the 24th Squadron (Pursuit) on March 14, 1921; Re-designated as the 24th Pursuit Squadron on January 25, 1923; Consolidated on April 8, 1924 with the 24th Aero Squadron;^[3] Served in Panama Canal Zone. Inactivated on October 15, 1946^[4]

• Meuse-Argonne Offensive Campaign^[2]

Demobilized: June 17, 1919

• Constituted in the Army Air Service as the 25th Squadron (Bombardment) on March 14, 1921; Assigned to the Panama Canal Department; Re-designated as the 25th Bombardment Squadron on January 25, 1923; Consolidated (1924) with 25th Aero Squadron.^[3]

Currently: 25th Space Range Squadron, Schriever AFB, Colorado^[4]

• Constituted in the Army Air Service as the 26th Squadron (Attack) on March 14, 1921; Re-designated as the 26th Attack Squadron on January 25, 1923; Consolidated on April 8, 1924 with the 26th Aero Squadron; Re-designated: 26th Bombardment Squadron on December 6, 1939;^[3] Inactivated on October 20, 1948
  Re-designated 26th Tactical Fighter Squadron on September 24, 1973; Activated on September 30, 1973

Currently: 26th Space Aggressor Squadron (USAFR), Schriever AFB, Colorado^[4]

• Patrols in the Toul, Aisne-Marne, Vesle and Verdun Sectors
• Champagne-Marne Defensive Campaign
• Aisne-Marne Offensive Campaign
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Medal of Honor recipient: Lt Frank Luke

• Returned to the United States in June 1919, assigned to Selfridge Field, Michigan
• Constituted in the Army Air Service as the 27th Squadron (Pursuit) on March 14, 1921; Re-designated as the 27th Pursuit Squadron on January 25, 1923;^[3] Re-designated: 27th Fighter Squadron on May 15, 1942

Currently: 27th Fighter Squadron, Langley AFB, Virginia^[4]

• Patrols in the Ypres Sector (Belgium) and Toul Sectors
• Somme Defensive Campaign
• Lys Defensive Campaign
• Champagne-Marne Defensive Campaign
• Aisne-Marne Offensive Campaign
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Demobilized: June 16, 1919

• Constituted in the Army Air Service as the 28th Squadron (Bombardment) on March 14, 1921; Consolidated on January 9, 1922 with the 28th Aero Squadron; Inactivated on June 28, 1922 at Mather Field.
• Activated on September 1, 1922 at Clark Field, PI, and assigned to the Philippine Department;^[3] Squadron suffered severe losses in the 1941–1942 Battle of the Philippines, withdrawn to Australia, December 1941. Fought in Pacific Theater, Inactivated on 1 October 19834
  Re-activated July 1, 1987

Currently: 28th Bomb Squadron, Dyess AFB, Texas^[4]

• Constituted in the Army Air Service as the 29th Pursuit Squadron on March 23, 1924; Consolidated in 1935 with the 29th Aero Squadron;^[3] Re-designated 29th Fighter-Interceptor Squadron on March 23, 1953

Currently 29th Training Systems Squadron, Eglin AFB, Florida^[4]

• Re-constituted in the Army Air Service as the 30th Bombardment Squadron on January 25, 1923; Transferred on October 25, 1935 to March Field, California. Re-designated as the 30th Bombardment Squadron (Heavy) on December 6, 1939. Transferred on June 1, 1941 to Albuquerque, New Mexico.
• Departed from the port of San Francisco on October 4, 1941 on the U.S.A.T. Willard A. Holbrook and arrived at Manila, PI, on October 23, 1941. Transferred to Clark Field, PI, the same day.^[3] Squadron suffered severe losses in the 1941–1942 Battle of the Philippines, was withdrawn to Australia in December 1941. Returned to combat in Pacific Theater in 1944, remained in Far East Air Force after World War II ended, engaged in strategic bombardment of North Korea, 1950–1953; inactivated February 1, 1963.

Consolidated September 19, 1985 with United States Air Force Thunderbirds, Nellis AFB, Nevada^[4]

• Re-constituted in the Army Air Service as the 31st Bombardment Squadron on March 24, 1923; Transferred on December 5, 1934 to Hamilton Field, California.
• Departed from the port of San Francisco on the U.S.A.T. Republic on February 1, 1938 to reinforce the Hawaiian Department. Arrived at Honolulu, TH, on February 8, 1938 and transferred to Hickam Field, TH, the same day;^[3] Squadron suffered severe losses in the Pearl Harbor Attack, was re-equipped and returned to combat in the Pacific Theater in 1942, remained in Far East Air Force after World War II ended, engaged in strategic bombardment of North Korea, 1950–1953; inactivated February 1, 1963
• Reactivated July 1, 1986

Currently: 31st Test and Evaluation Squadron, Edwards AFB, California^[4]

• Re-constituted in the Army Air Service as the 31st Bombardment Squadron on March 24, 1923;^[3] Deployed to European Theater of Operations (ETO) in August 1942; Discontinued, and inactivated, on June 8, 1964; Re-activated as 32d Air Refueling Squadron on December 23, 1964

Currently: 32d Air Refueling Squadron, McGuire AFB, New Jersey^[4]

• Re-constituted in the Army Air Service as the 33d Pursuit Squadron on March 24, 1923;^[3] World War II service as part of the Iceland Base Command (IBC), Inactivated on June 22, 1945; Re-designated as 33d Fighter-Bomber Squadron on March 3, 1953 and re-activated

Currently: 33d Special Operations Squadron, Cannon AFB, New Mexico^[4]

• Re-constituted in the Army Air Service as the 34th Pursuit Squadron on March 24, 1923; Reorganized and re-designated as the 34th Attack Squadron on March 1, 1935; Reorganized and re-designated as the 34th Bombardment Squadron on October 17, 1939;^[3] World War II service in the Mediterranean Theater of Operations (MTO)

Currently: 34th Bomb Squadron, Ellsworth AFB, South Dakota^[4]

• Re-constituted in the Army Air Service as the 35th Pursuit Squadron on March 24, 1923;^[3] Re-designated: 35th Fighter Squadron on May 15, 1942; fought in Pacific Theater during World War II; Korean War 1950–1953

Currently 35th Fighter Squadron, Kunsan AB, South Korea^[4]

• Re-constituted in the Army Air Service as the 36th Pursuit Squadron on March 24, 1923;^[3] Re-designated: 36th Fighter Squadron on May 15, 1942; fought in Pacific Theater during World War II; Korean War 1950–1953

Currently 36th Fighter Squadron, Osan AB, South Korea.^[4]

• Re-constituted in the Army Air Service as the 37th Pursuit Squadron on March 24, 1923; Re-designated as the 37th Bombardment Squadron on December 1, 1939;^[3] Deployed to European Theater of Operations (ETO) during World War II

Currently 37th Bomb Squadron, Ellsworth AFB, South Dakota^[4]

• Constituted in the Army Air Service as the 37th Pursuit Squadron on March 24, 1923; Activated on August 1, 1933 at Selfridge Field, Michigan; Consolidated in 1933 with the 38th Aero Squadron, Reorganized and re-designated 38th Observation Squadron
• Aircraft and crews began departing Hamilton Field, California, on December 6 en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor,^[3] suffered severe damage and was returned to the United States. Re-designated: 427th Bombardment Squadron (Heavy) on April 22, 1942; Deployed to European Theater of Operations (ETO), September 12, 1942; Discontinued, and inactivated, on January 1, 1962.

Re-activated as 427th Reconnaissance Squadron, May 1, 2012, assigned to Beale AFB, California^[4]

• Constituted in the Army Air Service as the 39th School Squadron on March 24, 1923; Activated on August 1, 1927 at Kelly Field, Texas and attached to the Air Corps Advanced Flying School. Consolidated in 1933 with the 39th Aero Squadron; Inactivated on September 1, 1936; Reactivated on February 1, 1940 at France Field, CZ, and assigned to the Panama Canal Department; Returned to the United States March 15, 1944, re-designated: 101st Photographic Reconnaissance Squadron; inactivated December 25, 1945.^[4]

• Constituted in the Army Air Service as the 40th Squadron (School) on June 10, 1922; Re-designated as the 40th School Squadron on January 25, 1923. Consolidated on April 8, 1924 with the 40th Aero Squadron; Reorganized and re-designated 40th Attack Squadron on March 1, 1935 and attached to the Air Corps Advanced Flying School. Relieved from the Air Corps Advanced Flying School September 1, 1936, assigned to the General Headquarters Air Force, and inactivated at Kelly Field, Texas; disbanded on July 1, 1940.^[3]

• Constituted in the Army Air Service as the 41st Squadron (School) on June 10, 1922; Organized on July 7, 1922 at Kelly Field, Texas. Re-designated as the 41st School Squadron on January 25, 1923. Consolidated on April 8, 1924 with the 41st Aero Squadron; Reorganized and re-designated March 1, 1935 as the 41st Observation Squadron (Long Range, Amphibian), assigned to the 2nd Wing, and attached to the Air Corps Advanced Flying School. Re-designated as the 41st Reconnaissance Squadron on September 1, 1936; Inactivated at Kelly Field, Texas and re-organized on January 20, 1937 as a Regular Army Reserve unit at Love Field, Dallas, Texas; Activated on February 1, 1940 at Langley Field, Virginia;^[3] deploying in early 1943 to Twelfth Air Force in North Africa. Engaged in long-range strategic bombing missions in the Mediterranean Theater of Operations (MTO) 1943–1945; Inactivated on February 28, 1946. Reactivated as SAC B-47 Squadron on August 11, 1958;
• Inactivated as SAC 429th Bombardment Squadron (Medium), January 1, 1962^[4]

• Constituted in the Army Air Service as the 42d School Squadron on June 10, 1922
  Consolidated on April 8, 1924 with the 42d Aero Squadron
  Reorganized and re-designated 42d Bombardment Squadron on March 1, 1935
  Inactivated on February 1, 1963 as the 42d Bombardment Squadron (Heavy) at Wright-Patterson AFB, Ohio^[4]

Re-designated and activated as 42d Attack Squadron, November 9, 2006, Creech AFB, Nevada.^[7]

• Constituted in the Army Air Service as the 43d Squadron (School) on June 10, 1922; Organized on July 7, 1922 at Kelly Field, Texas. Re-designated as the 43rd School Squadron on January 25, 1923. Consolidated on April 8, 1924 with the 43rd Aero Squadron; Inactivated on September 1, 1936 at Kelly Field, Texas.;^[4] Consolidated (1939) with the 43d Pursuit Squadron (Interceptor) which was constituted on December 22, 1939; Re-designated: 43d Fighter Squadron on May 15, 1942

Currently: 43d Fighter Squadron, Tyndall AFB, Florida^[4]

• Constituted in the Army Air Service as the 44th Squadron (Observation) on June 10, 1922; Organized on June 26, 1922 at Post Field, Oklahoma; Re-designated as the 44th Observation Squadron on January 25, 1923. Consolidated on April 8, 1924 with the 44th Aero Squadron; Inactivated on July 31, 1927
  Activated on April 1, 1931 at France Field, CZ; Re-designated: 430th Bombardment Squadron, April 22, 1942; Returned to the United States October 31, 1942; Re-designated: 430th Bombardment Squadron (Very Heavy) on March 28, 1944, saw combat in Pacific Theater; Inactivated on April 14, 1946^[4]

• Constituted in the Army Air Service as the 46th School Squadron on June 10, 1922
  Consolidated on April 8, 1924 with the 46th Aero Squadron; Assigned to the Air Corps Primary Flying School, Randolph Field, Texas, December 31, 1931.^[3]
• Subsequent history and lineage undetermined.

• Constituted in the Army Air Service as the 47th School Squadron on June 10, 1922; Consolidated on April 8, 1924 with the 47th Aero Squadron; disbanded on April 20, 1944.^[3]

• Constituted in the Army Air Service as the 48th School Squadron on June 10, 1922
  Consolidated on April 8, 1924 with the 48th Aero Squadron; Inactivated on September 1, 1931.
  Re-designated 48th Pursuit Squadron on March 1, 1935;^[3] Re-designated 48th Fighter Squadron on May 15, 1942; Re-designated 48th Fighter-Interceptor Squadron on September 11, 1952

Currently: 48th Flying Training Squadron, Columbus AFB, Mississippi^[4]

• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Demobilized on March 22, 1919

• Constituted in the Army Air Service as the 49th Squadron (Bombardment) on March 14, 1921; Re-designated as the 49th Squadron (Bombardment) on March 14, 1921. Attached to the 1st Provisional Air Brigade 6 May – October 3, 1921 while supporting the battleship bombing tests off the Virginia coast. Transferred on June 30, 1922 to Langley Field, Virginia. Transferred on August 10, 1922 to Phillips Field, Maryland. Attached to the Ordnance Department at Aberdeen Proving Ground to conduct tests with newly developed aerial bombs August 1922 – January 1928. Re-designated as the 49th Bombardment Squadron on January 25, 1923; Consolidated on October 16, 1936 with the 49th Aero Squadron; Unit B-17s located the Italian luxury liner S.S. Rex about 725 miles out to sea on the famous long range interception mission conducted on May 12, 1938; During World War II, deployed to the Mediterranean Theater of Operations (MTO); Inactivated on April 1, 1963
• Reactivated as 49th Test Squadron on July 1, 1986

Currently: 49th Test and Evaluation Squadron, Barksdale AFB, Louisiana^[4]

• Patrols in the Toul-Verdun Sector
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Medal of Honor Winners: Erwin R. Bleckley; Harold E. Goettler; Lost Battalion (World War I)

• Constituted in the Army Air Service as the 50th Squadron (Observation) on March 14, 1921; Attached to the 1st Provisional Air Brigade 6 May – October 3, 1921 while supporting the battleship bombing tests off the Virginia coast; Inactivated on August 1, 1927; Activated on November 1, 1930, less Reserve personnel, at Luke Field, Hawaii; Re-designated as the 50th Reconnaissance Squadron;^[3] Re-designated 431st Bombardment Squadron (Heavy) on April 22, 1942; Inactivated on October 20, 1947
• Re-designated 50th Airmanship Training Squadron and activated on October 1, 1983; Currently: 50th Education Squadron, United States Air Force Academy, Colorado^[4] Inactivated on August 1, 2005.

Demobilized: Garden City, New Jersey, January 1919^[6]

• Constituted in the Army Air Service as the 53d School Squadron, and assigned to the 14th School Group, Brooks Field, Texas on February 6, 1923; Consolidated on October 14, 1936 with the 52d Aero Squadron.^[3]
• Subsequent history and lineage undetermined.

• Constituted in the Army Air Service as the 53d School Squadron, and assigned to the 15th School Group, March Field, California on February 6, 1923; Consolidated on October 14, 1936 with the 53d Aero Squadron; disbanded on April 20, 1944.^[3]

• Constituted in the Army Air Service as the 54th School Squadron, and assigned to the 15th School Group, March Field, California on February 6, 1923; Re-designated as the 58th Service Squadron on January 16, 1923; Reorganized and re-designated 54th Bombardment Squadron on March 1, 1935, assigned to the 2d Bombardment Group, and attached to the Air Corps Tactical School, Maxwell Field, Alabama. Consolidated on October 14, 1936 with the 54th Aero Squadron; disbanded on May 1, 1942.^[3]

• Re-constituted in the Army Air Service on March 24, 1923 as the 55th Pursuit Squadron^[3]

Currently: 55th Fighter Squadron, Shaw AFB, South Carolina^[4]

Demobilized: July 1919, Mitchell Field, New York ^[6]

Demobilized: July 1919, Mitchell Field, New York ^[6]

Demobilized: July 1919, Mitchell Field, New York ^[6]

Demobilized: July 1919, Mitchell Field, New York ^[6]

Demobilized: July 1919, Mitchell Field, New York ^[6]

Demobilized: July 1919, Mitchell Field, New York ^[6]

Demobilized: July 1919, Mitchell Field, New York ^[6]

• Constituted in the Army Air Service on June 6, 1921 as Air Park No. 10, Luke Field, Hawaii. Re-designated as the 65th Service Squadron on December 22, 1922; The 65th Aero Squadron was consolidated with the 65th Service Squadron on October 16, 1936; Reorganized and re-designated January 25, 1938 as Base Headquarters and 17th Air Base Squadron
• Disbanded April 1, 1943 as HHS, 17th Service Group.^[3]

• Constituted in the Army Air Service on2 June 1921 as Air Park Ho 11, Nichols Field, Philippines; Re-designated as the 66th Service Squadron on January 25, 1923.; The 66th Aero Squadron was consolidated with the 66th Service Squadron in October 1936; Consolidated unit reorganized and re-designated as Base Headquarters and 20th Air Base Squadron.; Reorganized and re-designated September 1, 1940 as HHS, 20th Air Base Group (Reinforced)^[3]

• Constituted in the Army Air Service as the 70th Service Squadron, and assigned to the 14th School Group, Kelly Field, Texas on February 6, 1923; Consolidated on July 27, 1932 with the 70th Aero Squadron; Inactivated on September 1, 1936 at Hamilton Field, California. Personnel and equipment concurrently transferred to the Base Headquarters and 5th Air Base Squadron.^[3]

• Constituted in the Army Air Service on February 6, 1923 as the 72d Bombardment Squadron. Consolidated on April 8, 1924 with the 72d Aero Squadron^[3]

Currently: 72d Test and Evaluation Squadron, Eglin AFB, Florida^[4]

• Constituted in the Regular Army Reserve on October 18, 1927 as the 73d Headquarters Squadron; Re-designated as the 73d Pursuit Squadron on May 8, 1929; Designated mobilization training station was Dodd Field, Texas, 1927–31.
• Activated on July 15, 1931, less Reserve personnel, at March Field, California; Reorganized and re-designated 73d Attack Squadron on March 1, 1935; Consolidated on June 5, 1936 with the 73d Aero Squadron^[3]

Currently: 73d Special Operations Squadron, Cannon AFB, New Mexico^[4]

• Constituted in the Regular Army Reserve on October 18, 1927 as the 74th Attack Squadron; Re-designated as the 74th Pursuit Squadron on May 8, 1929; Organized Reserve officers assigned to the unit participated in summer training at Fort Crockett, Texas, 1927–33
• Activated on October 1, 1933, less Reserve personnel, at Albrook Field, Canal Zone. Consolidated in October 1936 with the 74th Aero Squadron;^[3] Served in Panama Canal Zone during World War II as the 74th Bombardment Squadron, equipped with B-24 Liberators. Inactivated November 1, 1946.^[4]
• Re-designated: 135th Bombardment Squadron (Medium) on March 27, 1951 as part of federalized New York Air National Guard; Activated on May 1, 1951; Inactivated on December 1, 1952.^[4]

• Constituted in the Regular Army Reserve on October 18, 1927 as the 75th Attack Squadron; Organized Reserve officers assigned to the unit participated in summer training at Fort Crockett, Texas, 1928–30
• Activated on September 15, 1930, less Reserve personnel, at Wheeler Field, Hawaii; Consolidated on October 16, 1936 with the 75th Aero Squadron; Reorganized and re-designated Base Headquarters and 18th Air Base Squadron (Single) on March 1, 1938; disbanded April 1, 1943.^[3]

• Constituted in the Regular Army Reserve on October 18, 1927 as the 77th Observation Squadron; Re-designated as the 77th Pursuit Squadron on May 8, 1929; Conducted annual summer training at Love Field or Hensley Field, Texas.
• Activated on November 15, 1930, less Reserve personnel, at Mather Field, California; Currently: 77th Fighter Squadron, Shaw AFB, South Carolina^[4]

• Constituted in the Regular Army Reserve on October 18, 1927 as the 78th Observation Squadron; Re-designated as the 78th Pursuit Squadron on May 8, 1929; Organized Reserve officers assigned to the unit participated in summer training at Kelly Field 1927–30. Designated mobilization training station was Dodd Field, Texas, 1927–30.
• Activated on April 1, 1931, less Reserve personnel, at France Field, Canal Zone; Consolidated in 1933 with the 78th Aero Squadron^[3]

Currently: 78th Attack Squadron, Nellis AFB, Nevada^[4]

• Constituted in the Regular Army Reserve on October 18, 1927 as the 79th Observation Squadron; Re-designated as the 79th Pursuit Squadron on May 8, 1929
• Activated on April 1, 1933 at Barksdale Field, Louisiana; Consolidated on May 25, 1933 with the 79th Aero Squadron^[3]

Currently: 79th Fighter Squadron, Shaw AFB, South Carolina.^[4]

• Constituted on October 18, 1927 as the 80th Observation Squadron. Re-designated as the 80th Service Squadron on May 8, 1929. Activated on November 15, 1930 at Mather Field, California. The 80th Aero Squadron was consolidated with the 80th Service Squadron August 24, 1932. Transferred to Albrook Field, Canal Zone, same day.; Reorganized and re-designated Base Headquarters and 15th Air Base Squadron on September 1, 1937; disbanded on November 1, 1943^[3]

• Constituted on March 1, 1935 as the Station Complement, Kelly Field and concurrently activated at Kelly Field, Texas. Reorganized and re-designated September 1, 1936 as the 12th Air Base Squadron and assigned to the Air Corps Advanced Flying School. Concurrently consolidated with the 81st Service Squadron.
  The 81st Aero Squadron was consolidated with the 81st Service Squadron December 1, 1936.; Reorganized and re-designated September 1, 1940 as HHS, 12th Air Base Group (Special).^[3]

Demobilized July 31, 1919 ^[6]

• Constituted in the Army Air Corps on March 1, 1935, attached to the Air Corps Tactical School, and organized at Maxwell Field, Alabama; Inactivated on September 1, 1936 at Maxwell Field; Consolidated on December 1, 1936 with the 86th Aero Squadron
• Activated on February 1, 1940 at Wheeler Field, Hawaii as 86th Observation Squadron; Suffered devastating losses during Pearl Harbor Attack.^[3]

Currently 43d Electronic Combat Squadron, Davis-Monthan AFB, Arizona^[4]

• Constituted in the Army Air Corps on March 1, 1935, assigned to the 20th Pursuit Group, and organized at Maxwell Field, Alabama, with personnel from the 51st and 54th School Squadrons; Attached to the Air Corps Tactical School. Inactivated on September 1, 1936 at Maxwell Field, Alabama.; Consolidated on December 1, 1936 with the 87th Aero Squadron; Organized on March 1, 1935; Inactivated September 1, 1936;^[3] Reconstituted, and consolidated (March 21, 1979) with unit constituted as 87th Pursuit Squadron (Interceptor) on January 13, 1942

Currently: 87th Flying Training Squadron, Laughlin AFB, Texas.^[4]

• Patrols in the Toul, Aisne-Marne, and Vesle Sectors
• Champagne-Marne Defensive Campaign
• Aisne-Marne Offensive Campaign
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Returned to the United States on June 27, 1919; Transferred on September 5, 1919 to Langley Field, Virginia.
• Constituted in the Army Air Service as the 88th Squadron (Observation) on March 14, 1921; Attached to the 1st Provisional Air Brigade 6 May – October 3, 1921 while supporting the battleship bombing tests off the Virginia coast; Re-designated as the 88th Observation Squadron on January 25, 1923; Re-designated as the 88th Reconnaissance Squadron (Long Range) on December 6, 1939.
• Ground elements departed from Fort Douglas November 13, 1941 and sailed from the port of San Francisco on November 21 on an army transport en route to the Philippines. Aircraft and crews began departing Muroc Field, California, on December 6 en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor^[3]
• Re-designated: 436th Bombardment Squadron (Heavy) April 22, 1942

Currently: 436th Training Squadron, Dyess AFB, Texas^[4]

• Constituted in the Army Air Corps on March 1, 1935 as the 89th Observation Squadron; Consolidated in October 1936 with the 89th Aero Squadron;^[3] Re-designated: 432d Bombardment Squadron (Medium) on April 22, 1942; inactivated November 26, 1945.^[4]

• Patrols in the Toul Sector
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Returned to the United States, June 1919 and was assigned to Kelly Field, Texas; Transferred on November 29, 1919 to Sanderson, Texas. Participated in the Mexican Border Patrol operations September 1919 – June 1921
• Constituted in the Army Air Service as the 90th Squadron (Attack) on March 14, 1921; Re-designated as the 90th Attack Squadron on June 25, 1923; Transferred on July 1, 1926 to Fort Crockett, Texas. Flew border reconnaissance missions from Fort Huachuca, Arizona, during the Escobar-Topete Revolution April 7 – May 2, 1929; Transferred on February 27, 1935 to Barksdale Field, Louisiana. Reorganized and re-designated 90th Bombardment Squadron (Light) on September 15, 1939^[3]

Currently: 90th Fighter Squadron, Elmendorf AFB, Alaska^[4]

• Patrols in the Toul Sector
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Returned to the United States June 1919 at Mitchel Field, New York; Transferred to Rockwell Field, California, on September 29, 1919; Transferred on November 3, 1919 to Mather Field, California. Transferred on January 24, 1920 to Ream Field, California. Participated in Mexican Border Patrol operations January 1920 – January 1921
• Constituted in the Army Air Service as the 91st Squadron (Observation) on March 14, 1921; Re-designated 91st Observation Squadron on January 25, 1923^[3]

Currently: 91st Network Warfare Squadron, Lackland AFB, Texas^[4]

• Constituted in the Army Air Corps as the 17th Reconnaissance Squadron (Light) on November 20, 1940; Consolidated with the 92d Aero Squadron in 194; Re-designated 433d Bombardment Squadron (Medium) on April 22, 1942; Re-designated 867th Bombardment Squadron, Heavy on October 21, 1943

Currently 867th Reconnaissance Squadron, Creech AFB, Nevada^[4]

• Patrols in the Toul Sector
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Demobilized:March 31, 1919

• Constituted in the Regular Army Reserve on May 8, 1929 as the 93rd Attack Squadron; Inactivated on October 31, 1936 at Fort Crockett, Texas by relief of Reserve personnel. Chicago, Illinois, designated as headquarters location on reorganization, but the unit was never reorganized at that location
• Consolidated in October 1936 with the 93rd Aero Squadron; Re-designated as the 93rd Bombardment Squadron (Heavy) on October 20, 1939 and organized at March Field, California; Transferred in June 1941 to Albuquerque, New Mexico. Departed from the port of San Francisco on October 4, 1941 on the U.S.A.T. Willard A. Holbrook and arrived at Manila, Philippines, on October 23, 1941. Transferred to Clark Field, Philippines, the same day. Transferred on December 6, 1941 to Del Monte Field, Philippines.;^[3] Engaged in 1941–1942 Battle of the Philippines before being withdrawn in late December 1941 to Australia.

Currently: 93d Bomb Squadron (AFRES), Barksdale AFB, Louisiana^[4]

• Patrols in the Toul and Aisne-Marne, Vesle and Verdun Sectors
• Champagne-Marne Defensive Campaign
• Aisne-Marne Offensive Campaign
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Medal of Honor recipient: Capt. Edward V. Rickenbacker

• Returned to the United States June 1919 at Mitchel Field, New York
• Constituted in the Army Air Service as the 94th Squadron (Pursuit), March 14, 1921^[3]

Currently: 94th Fighter Squadron, Langley AFB, Virginia^[4]

• Patrols in the Toul and Aisne-Marne, Vesle and Verdun Sectors
• Champagne-Marne Defensive Campaign
• Aisne-Marne Offensive Campaign
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Demobilized: March 18, 1919

• Re-constituted and organized on August 12, 1919 in the Air Service, United States Army as the 95th Aero Squadron
• Constituted in the Army Air Service as the 95th Squadron (Pursuit) on March 14, 1921^[3]

Currently: 95th Reconnaissance Squadron, Offut AFB, Nebraska^[4]

• Patrols in the Toul Sector
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Returned to the United States, June 1919 and stationed at Ellington Field, Texas; Participated in Mexican Border Patrols August 1919-10 January 1920
• Constituted in the Army Air Service as the 96th Squadron (Bombardment) on March 14, 1921; Attached to the 1st Provisional Air Brigade 20 May – October 26, 1921 while supporting the battleship bombing tests off the Virginia coast^[3]

Currently: 96th Bomb Squadron, Barksdale AFB, Louisiana^[4]

• Constituted in the Army Air Corps on March 1, 1935; Consolidated on June 5, 1936 with the 97th Aero Squadron;^[3] Served during World War II as 97th Tactical Reconnaissance Squadron, a training unit for desert warfare in the Mojave Desert, Southern California. Disbanded on April 15, 1944.^[4][10]
• Re-activated as: 6949th Security Squadron, March 1, 1979; Reconstituted and consolidated (October 1, 1993) with the 6949th Security Squadron and re-designated the 97th Intelligence Squadron on October 1, 1993

Currently: 97th Intelligence Squadron

• Constituted in the United States Army Air Corps as the 98th School Squadron, and assigned to the Air Corps Technical School, Chanute Field, Illinois on August 1, 1933; Consolidated in 1934 with the 98th Aero Squadron; Reorganized and re-designated 98th Service Squadron on March 1, 1935. Reorganized and re-designated 10th Air Base Squadron on July 1, 1936.^[3] Subsequent lineage undetermined.

• Patrols in the Toul and St. Die Sectors
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Returned to the United States, June 1919 and stationed at Hazelhurst Field, New York; Transferred on August 17, 1919 to Bolling Field, District of Columbia.
• Constituted in the Army Air Service as the 99th Squadron (Observation) on March 14, 1921^[3]

Currently: 99th Reconnaissance Squadron, Beale AFB, California^[4][10]

• Constituted in the Army Air Corps as the 100th Service Squadron on March 1, 1935
  Consolidated in 1935 with the 100th Aero Squadron; Consolidated with the Station Complement, Bolling Field, District of Columbia and consolidated unit re-designated Base Headquarters and 14th Air Base Squadron on September 1, 1936.^[3] Subsequent history/lineage undetermined.

• Constituted in the National Guard in 1921 as the 101st Squadron (Observation), and allotted to the state of Massachusetts; federally recognized on November 18, 1921 at Boston. Stationed at Boston Airport; Consolidated on October 20, 1936 with the 101st Aero Squadron

Currently Massachusetts ANG 101st Intelligence Squadron^[3][6][11]

• Constituted in the National Guard on December 30, 1920 as the 102nd Squadron (Observation), and allotted to the state of New York; Organized on November 17, 1921 from the Observation Squadron, New York National Guard (organized on March 22, 1921 at Hempstead, Long Island, New York, with personnel from K Company, 14th Infantry, New York National Guard). Concurrently federally recognized at Hempstead; Consolidated on October 20, 1936 with the 102d Aero Squadron

Currently New York ANG 102d Rescue Squadron^[3][6][11]

• Patrols in the Champagne, Aisine, Ypres-Lys (Belgium) and Toul Sectors
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Demobilized: August 18, 1919

• Constituted in the Army Air Service as the 94th Squadron (Pursuit) on March 14, 1921; Re-constituted and consolidated with the 103d Aero Squadron, April 8, 1924; consolidated unit designated 94th Pursuit Squadron

Currently: 94th Fighter Squadron, Langley AFB, Virginia^[3][12][13]

• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Re-constituted in the Army Air Service as the 13th Squadron (Attack) on March 14, 1921; Consolidated with 13th Aero Squadron, October 16, 1936

Currently: 13th Bomb Squadron, Whiteman AFB, Missouri^[3][14][15]

• Constituted in the National Guard in 1921 as the 136th Squadron (Observation) and allotted to the state of Tennessee; Originally organized in the fall of 1920, the squadron was federally recognized on December 4, 1921 at Blackwood Field, Nashville, Tennessee.

Currently Tennessee ANG 105th Airlift Squadron^[6][11]

• Constituted in the National Guard in 1921 as the 110th Squadron (Observation) and allotted to the state of Missouri; Organized and federally recognized on June 23, 1923 at Anglum Field, St. Louis, Missouri. 1st Lt. Charles Lindburgh was a member of the squadron 1925–27.

Currently Missouri ANG 110th Bomb Squadron^[6][11]

• Constituted in the National Guard in 1921 as the 111th Squadron (Observation) and allotted to the state of Texas; Organized in April 1923 and federally recognized on June 29, 1923 at Ellington Field, Houston, Texas.

Currently Texas ANG 111th Reconnaissance Squadron^[6][11]

• Constituted in the National Guard in 1921 as the 112th Squadron (Observation) and allotted to the state of Ohio; Organized and federally recognized on June 20, 1927 at Cleveland Airport, Cleveland, Ohio

Currently Ohio ANG 112th Fighter Squadron^[6][11]

• Depot was established in March 1918 as a general supply depot. The depot was located adjacent to Souther Field. It supplied materiel to aviation fields and in particular to the Air Service training fields: Park Field, Tennessee, Taylor Field, Alabama, Payne Field, Mississippi, Carlstrom Field, and Dorr Field, Florida.^[16] The 112th and 287th Aero Squadrons were consolidated into "Aviation Supply Depot Detachment" January 1, 1919.^[6]

• Constituted in the National Guard in 1921 as the 113th Squadron (Observation) and allotted to the state of Indiana; Organized and federally recognized on June 20, 1927 at Cleveland Airport, Cleveland, Ohio

Currently Indiana ANG 113th Air Support Operations Squadron^[6][11]

• Constituted in the National Guard in 1921 as the 119th Squadron (Observation) and allotted to the state of New Jersey; Organized and federally recognized on January 30, 1930 at Newark Airport, Newark, New Jersey,

Currently New Jersey ANG 119th Fighter Squadron^[6][11]

• Constituted in the National Guard in 1921 as the 120th Squadron (Observation) and allotted to the state of Colorado; Organized and federally recognized on January 27, 1923 at Denver Municipal Airport, Denver, Colorado, with Flight A located at Denver and Flight B at Pueblo

Currently Colorado ANG 120th Fighter Squadron^[6][11]

• Patrols in the Toul Sector
• St. Mihiel Offensive Campaign^[2]

• Returned to the United States in June 1919 and Stationed at Post Field, Oklahoma; Constituted in the Army Air Service as the 22d Squadron (Observation) on March 14, 1921

Currently: 22d Intelligence Squadron, Fort George G. Meade, Maryland^[4][15]

• Patrols in the Toul and Toul-Verdun Sectors
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Demobilized: June 17, 1919^[6][15]

• Meuse-Argonne Offensive Campaign^[2]

Demobilized July 19, 1919

• Constituted in the Army Air Corps as the 341st Fighter Squadron on September 24, 1942; Inactivated on May 10, 1946
• Constituted in the National Guard on May 24, 1946 as the 141st Fighter Squadron, and allotted to the state of New Jersey; 141st Aero Squadron (Pursuit), was reconstituted and allotted to the State of New Jersey and consolidated with the 141st Tactical Fighter Squadron, September 8, 1973

Currently: New Jersey ANG 141st Air Refueling Squadron^{[6][6][11][11]}

• Patrols in the Toul, Aisne-Marne, Vesle and Verdun Sectors
• Champagne-Marne Defensive Campaign
• Aisne-Marne Offensive Campaign
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

• Returned to the United States in June 1919 and Stationed at Selfridge Field, Michigan
• Constituted in the Army Air Service as the 17th Squadron (Pursuit) on March 14, 1921

Currently: 17th Weapons Squadron, Nellis AFB, Nevada^[6][17]

• Patrols in the Amiens-Arras and Nieuport-Ypres (Belgium) Sectors
• Somme Defensive Campaign
• Somme Offensive Campaign^[2]

Demobilized: March 24, 1919 ^[6][18]

• Constituted in the National Guard in 1921 as the 154th Squadron (Observation), assigned to the 320th Observation Group, and allotted to the Seventh Corps Area. Allotted to the Organized Reserve as a Deferred National Guard unit, and re-designated as the 564th Observation Squadron. Withdrawn from the Organized Reserve on September 10, 1925 and allotted to the Arkansas National Guard as the 154th Observation Squadron; Organized and federally recognized on October 24, 1925 at Little Rock Airport, Little Rock, Arkansas.; Consolidated on October 20, 1936 with the 154th Aero Squadron

Currently Arkansas ANG 154th Training Squadron^[4][11]

• Was the first night bombardment squadron in the AEF. Flew Dayton-Wright DH-4s from 1st Air Depot after the armistice looking for crashed aircraft for recovery.^[6][19]

• Quarantined in U.S. for measles, mumps, and scarlet fever which delayed departure for AEF. It also probably prevented the squadron from seeing service in France before armistice as their departure was scheduled four days later. Squadron was proud of helping RAF run the Airdrome at TADCASTER (Bramham Moor), Yorkshire during Spanish Influenza epidemics.^[20]

• Squadron was torpedoed on SS Tuscania, February 5, 1918 during overseas transport. Reformed in England but never reached combat.^[6][19]

• Squadron was torpedoed on SS Tuscania, February 5, 1918 during overseas transport. Reformed in England but never reached combat.^[6][19]

• Returned to the United States on June 17, 1919 and stationed at Mitchel Field, New York.; Transferred on September 26, 1919 to Kelly Field, Texas
• Constituted in the Army Air Service as the 49th Squadron (Bombardment) on March 14, 1921

Currently: 49th Test and Evaluation Squadron, Barksdale AFB, Louisiana^[19][21]

• Patrols in the Toul Sector
• St. Mihiel Offensive Campaign
• Meuse-Argonne Offensive Campaign^[2]

Demobilized June 30, 1919^[6][22]

• Depot was established in March 1918 as a general supply depot.^[16] The 112th and 287th Aero Squadrons were consolidated into "Aviation Supply Depot Detachment" January 1, 1919.^[6]

• Constituted in the Organized Reserve (New York) as the 302d Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 302d Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New Jersey) as the 303th Observation Squadron on June 24, 1921; Col. Charles A. Lindbergh, Air Corps Reserve, was attached to the squadron in June 1932 for summer training at Mitchel Field, New York; Consolidated on November 24, 1936 with the 303d Aero Squadron
• Inactivated in August 1937; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Tennessee) as the 306th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 306th Aero Squadron
• Inactivated on July 23, 1939; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Georgia) as the 307th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 307th Aero Squadron
• Inactivated on August 27, 1939; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Ohio) as the 308th Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft; Consolidated on November 24, 1936 with the 308th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Ohio) as the 309th Observation Squadron on October 15, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. Squadron commander in the late 1920s was World War I ace Major H. Weir Cook; Consolidated on November 24, 1936 with the 309th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Michigan) as the 310th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 310th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as the 311th Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 311th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Alabama) as the 312th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 312th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Iowa) as the 313th Observation Squadron on June 24, 1921; 1st Lt. Charles Lindburgh was a member of the squadron from June to November 1925; Consolidated on November 24, 1936 with the 313th Aero Squadron
• Inactivated on October 2, 1939; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Nebraska) as the 314th Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. The squadron's equipment was stationed at Offut Field, Nebraska; Consolidated on November 24, 1936 with the 314th Aero Squadron
• Inactivated on October 2, 1939; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Texas) as the 315th Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft; Consolidated on November 24, 1936 with the 315th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (California) as the 316th Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. In January 1922 the squadron received the use of a hangar at Crissy Field and was issued five aircraft for training purposes making it the first aircraft equipped reserve squadron in the United States; Consolidated on November 24, 1936 with the 316th Aero Squadron
• Inactivated on September 1, 1940; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Massachusetts) as the 319th Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. Stationed initially at the Framingham Airdrome. The squadron's aircraft were transferred to the Boston Airport after its opening in 1923; Consolidated on November 18, 1936 with the 319th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Oklahoma) as the 320th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 320th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Oregon) as the 321st Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. The squadron's equipment was stationed just across the Columbia River at Pearson Field, Vancouver Barracks, Washington. 1st Lt. Oakley Kelly, Air Service Reserve, a pilot who made the first non-stop transcontinental flight in 1923, was the unit instructor 1924–28; Consolidated on August 12, 1933 with the 321st Aero Squadron
• Inactivated on January 30, 1942; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New Hampshire) as the 322d Observation Squadron on October 15, 1921; Consolidated on November 23, 1936 with the 322d Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as the 323d Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 323d Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 324th Observation Squadron on October 15, 1921; Consolidated on November 23, 1936 with the 324th Aero Squadron
• Inactivated on October 23, 1939 by relief of personnel; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Ohio) as the 325th Observation Squadron on June 24, 1921; Consolidated on November 19, 1931 with the 325th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Arkansas) as the 327th Observation Squadron on October 15, 1921; Consolidated on November 23, 1936 with the 327th Aero Squadron
• Inactivated on October 2, 1939 by relief of personnel; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Colorado) as the 328th Observation Squadron on October 15, 1921; Consolidated on November 21, 1936 with the 328th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Utah) as the 329th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 329th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as Air Park No. 332 on October 15, 1921; Re-designated 332d Service Squadron, July 2, 1923; Consolidated on November 21, 1936 with the 332d Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as Air Park No. 333 on October 15, 1921; Re-designated 333d Service Squadron, July 2, 1923; Consolidated on November 21, 1936 with the 333d Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as Air Park No. 335 on October 15, 1921; Re-designated 335th Service Squadron, July 2, 1923; Consolidated on November 21, 1936 with the 335th Aero Squadron
• Inactivated about September 1939; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Ohio) as Air Park No. 336 on October 15, 1921; Re-designated 336th Service Squadron, July 2, 1923; Consolidated on November 21, 1936 with the 336th Aero Squadron
• Inactivated by March 1930; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as Air Park No. 337 on October 15, 1921; Re-designated 337th Service Squadron, July 2, 1923; Consolidated on November 21, 1936 with the 339th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as Air Park No. 339 on October 15, 1921; Re-designated 338th Service Squadron, July 2, 1923; Consolidated on November 24, 1936 with the 339th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Texas) as Air Park No. 341 on October 15, 1921; Re-designated 341st Service Squadron, July 2, 1923; Consolidated on November 24, 1936 with the 341st Aero Squadron
• Inactivated on January 16, 1941; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as Air Park No. 344 on October 15, 1921; Re-designated 344th Service Squadron, July 2, 1923; Consolidated on November 24, 1936 with the 344th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as Air Park No. 346 on October 15, 1921; Re-designated 346th Service Squadron, July 2, 1923; Consolidated on November 24, 1936 with the 346th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as Air Park No. 349 on October 15, 1921; Re-designated 349th Service Squadron, Transport Group, October 1, 1933; Consolidated on November 24, 1936 with the 349th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Oklahoma) as the 350th Service Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 350th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Massachusetts) as the 351st Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 351st Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as the 353d Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 353d Aero Squadron
• Disbanded on May 31, 1942^[3]

Demobilized: July 30, 1919 ^[6][23]

• Constituted in the Organized Reserve (Alabama) as the 357th Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 357th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (South Carolina) as the 358th Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 358th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Ohio) as the 359th Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 359th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Oklahoma) as the 365th Observation Squadron on October 15, 1921; Consolidated on November 28, 1936 with the 365th Aero Squadron
• Inactivated on October 31, 1936; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Texas) as the 366th Observation Squadron on October 15, 1921; Consolidated on November 28, 1936 with the 366th Aero Squadron
• Inactivated on October 31, 1936; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (California) as the 367th Observation Squadron on October 15, 1921; Consolidated on November 28, 1936 with the 367th Aero Squadron; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft.
• Inactivated on September 2, 1937; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as the 369th Observation Squadron on October 15, 1921; Re-designated 374th Service Squadron, January 25, 1923; Consolidated on November 27, 1936 with November 27, 1936
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (California) as Air Park No. 373 on October 15, 1921; Re-designated 373d Service Squadron, January 25, 1923; Consolidated on November 27, 1936 with the 373d Aero Squadron
• Inactivated on March 2, 1937; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (California) as Air Park No. 374 on October 15, 1921; Re-designated 374th Service Squadron, January 25, 1923; Consolidated on November 27, 1936 with the 374th Aero Squadron
• Inactivated on September 1, 1928; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Indiana) as Air Park No. 305 on October 15, 1921; Re-designated as the 377th Service Squadron on January 25, 1923; Consolidated on November 27, 1936 with the 377th Aero Squadron
• Inactivated on December 1, 1929; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as Air Park No. 306 on October 15, 1921; Re-designated as the 378th Service Squadron on January 25, 1923; Consolidated on November 27, 1936 with the 378th Aero Squadron
  Inactivated by December 7, 1941; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Nebraska) as Air Park No. 307 on October 15, 1921; Re-designated 379th Service Squadron, Attack Group, October 1, 1933; Consolidated on November 28, 1936 with the 379th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Texas) as Air Park No. 308 on October 15, 1921; Re-designated 380th Service Squadron, Observation Group, October 1, 1933; Consolidated on November 28, 1936 with the 380th Aero Squadron
• Inactivated on October 31, 1936; disbanded on May 31, 1942^[3]

• Notable as the first American Air Service Squadron to arrive in France^[6][25]
• Constituted in the Organized Reserve (New York) as the 400th Attack Squadron on October 15, 1921; Consolidated on November 27, 1936 with the 400th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as the 401st Attack Squadron on October 15, 1921; Consolidated on November 27, 1936 with the 401st Aero Squadron
• Inactivated on September 18, 1930; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as the 402d Attack Squadron on October 15, 1921; Consolidated on November 27, 1936 with the 402d Aero Squadron
• Inactivated on December 5, 1929; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) October 15, 1921; Consolidated on November 23, 1936 with 403d Airdrome Company
• Disbanded May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 404th Pursuit Squadron on October 15, 1921; Consolidated on November 30, 1936 with the 404th Aero Squadron
• Inactivated by June 1940; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 405th Pursuit Squadron on October 15, 1921; Consolidated on November 30, 1936 with the 405th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 406th Pursuit Squadron on October 15, 1921; Reorganized and re-designated 406th Attack Squadron on October 1, 1933; Consolidated on November 30, 1936 with the 406th Aero Squadron
• Inactivated by June 1940; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 407th Attack Squadron on October 15, 1921; Consolidated on December 5, 1936 with the 407th Aero Squadron
• Inactivated on July 25, 1929; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 408th Attack Squadron on October 15, 1921; Consolidated on December 5, 1936 with the 408th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 409th Attack Squadron on October 15, 1921; Consolidated on November 30, 1936 with the 409th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 410th Attack Squadron on October 15, 1921; Consolidated on November 30, 1936 with the 410th Aero Squadron
• Inactivated on July 23, 1929; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as the 411th Airdrome Company October 15, 1921; Consolidated on November 23, 1936 with 411th Aero Squadron
• Disbanded May 31, 1942^[3]

• Constituted in the Organized Reserve (Mississippi) as the 412th Pursuit Squadron on October 15, 1921; Consolidated on November 28, 1936 with the 412th Aero Squadron
• Inactivated on September 19, 1929; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) October 15, 1921 as the 413th Airdrome Company; Consolidated on November 23, 1936 with 413th Aero Squadron
• Disbanded May 31, 1942^[3]

• Constituted in the Organized Reserve (Ohio) as the 414th Pursuit Squadron on October 15, 1921; Consolidated on November 28, 1936 with the 414th Aero Squadron
• Inactivated about June 1937; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Ohio) October 15, 1921 as the 415th Airdrome Company; Consolidated on November 23, 1936 with 415th Aero Squadron
• Disbanded May 31, 1942^[3]

• Constituted in the Organized Reserve (Ohio) October 15, 1921 as the 416th Airdrome Company; Consolidated on November 23, 1936 with 416th Aero Squadron
• Disbanded May 31, 1942^[3]

• Constituted in the Organized Reserve (Wisconsin) October 15, 1921 as the 417th Airdrome Company; Consolidated on November 23, 1936 with 417th Aero Squadron
• Disbanded May 31, 1942^[3]

• Constituted in the Organized Reserve (Arkansas) October 15, 1921 as the 418th Airdrome Company; Consolidated on November 23, 1936 with 418th Aero Squadron
• Disbanded May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) October 15, 1921 as the 419th Airdrome Company; Consolidated on November 23, 1936 with 419th Aero Squadron
• Disbanded May 31, 1942^[3]

• Constituted in the Organized Reserve (Kentucky) October 15, 1921 as the 420th Airdrome Company; Consolidated on November 23, 1936 with 420th Aero Squadron
• Disbanded May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as the 421st Pursuit Squadron on October 15, 1921; Consolidated on December 2, 1936 with the 421st Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Wisconsin) as the 422d Pursuit Squadron on October 15, 1921; Consolidated on December 2, 1936 with the 422d Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as the 423d Pursuit Squadron on October 15, 1921; Reorganized and re-designated 423d Attack Squadron on October 1, 1933; Consolidated on December 2, 1936 with the 423d Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as the 425th Attack Squadron on October 15, 1921; Consolidated on December 3, 1936 with the 425th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as the 426th Attack Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 426th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as the 426th Attack Squadron on October 15, 1921; Consolidated on November 27, 1936 with the 426th Aero Squadron
• Inactivated on July 28, 1936; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Michigan) as the 428th Pursuit Squadron on October 15, 1921; Consolidated on November 16, 1936 with the 428th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Missouri) as the 430th Pursuit Squadron on October 15, 1921; This squadron was one of the few in the Organized Reserve that possessed facilities, equipment, and aircraft. Squadron personnel were largely pilots and ground support personnel employed by Trans-World Airways (TWA) at the Kansas City Municipal Airport. Participated in a "Fly By" in June 1932 for the Honorable Patrick J. Hurley, Secretary of War, at the grand opening of the Kansas City-St. Louis Waterway; Consolidated on November 25, 1936 with the 430th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Texas) as the 435th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 435th Aero Squadron
• Inactivated on October 31, 1936; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Colorado) as the 436th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 436th Aero Squadron
• Inactivated on October 31, 1936; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Massachusetts) as the 443d Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 443d Aero Squadron
• Inactivated on June 5, 1936; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as the 447th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 447th Aero Squadron
• Inactivated in June 1929; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as the 448th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 448th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (New York) as the 449th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 449th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (North Carolina) as the 455th Pursuit Squadron on October 15, 1921; Reorganized and re-designated as the 455th Bombardment Squadron on August 18, 1933; Consolidated on November 25, 1936 with the 455th Aero Squadron
• Inactivated on September 19, 1929; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Tennessee) as the 456th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 456th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Georgia) as the 457th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 457th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Georgia) as the 458th Pursuit Squadron on October 15, 1921; Reorganized and re-designated as the 458th Bombardment Squadron on August 18, 1933; Consolidated on December 3, 1936 with the 458th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Tennessee) as the 459th Observation Squadron on October 15, 1921; Consolidated on December 3, 1936 with the 459th Aero Squadron
• Inactivated on September 19, 1929; disbanded on May 31, 1942^[3]

• Constituted in the United States Army Air Corps as Air Park No. 4, and assigned to the 2d Bombardment Group, Kelly Field, Texas on June 26, 1922; Concurrently organized with personnel and equipment from the 464th Aero Squadron; Re-designated as the 59th Service Squadron on January 25, 1923
• Demobilized on September 1, 1936.^[3]

• Constituted in the Organized Reserve (Illinois) as the 468th Attack Squadron on October 15, 1921; Consolidated on December 3, 1936 with the 469th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as the 469th Attack Squadron on October 15, 1921; Consolidated on December 3, 1936 with the 469th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Illinois) as the 470th Attack Squadron on October 15, 1921; Consolidated on December 3, 1936 with the 47th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (California) as the 475th Attack Squadron on October 15, 1921; Consolidated on November 16, 1936 with the 475th Aero Squadron
• Inactivated on October 31, 1936; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (California) as the 476th Pursuit Squadron on October 15, 1921; Consolidated on January 24, 1931 with the 476th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (California) as the 477th Pursuit Squadron on October 15, 1921; >Consolidated on January 24, 1931 with the 477th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (California) as the 479th Pursuit Squadron on October 15, 1921; Relocated on January 28, 1930 to the Los Angeles Municipal Airport, Los Angeles. There the squadron became one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft.; Consolidated on January 24, 1931 with the 479th Aero Squadron
• Inactivated on September 2, 1937; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 481st Bombardment Squadron on March 31, 1924; Consolidated on December 3, 1936 with the 483d Aero Squadron
• Inactivated by June 1940; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Maryland) as the 482d Bombardment Squadron on March 31, 1924; Consolidated on December 2, 1936 with the 482d Aero Squadron; Inactivated on July 23, 1929; disbanded on May 31, 1942
• Reconstituted and consolidated (April 21, 1944) with 482d Bombardment Squadron (Very Heavy) which was constituted on February 28, 1944; Inactivated on June 30, 1946^[3][4]

• Constituted in the Organized Reserve (Pennsylvania) as the 483d Bombardment Squadron on March 31, 1924; Consolidated on December 2, 1936 with the 483d Aero Squadron
• Inactivated on July 23, 1929; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 484th Bombardment Squadron on March 31, 1924; Consolidated on December 2, 1936 with the 484th Aero Squadron; Inactivated on May 12, 1937 by relief of personnel; disbanded on May 31, 1942
• Reconstituted and consolidated (April 21, 1944) with 484th Bombardment Squadron (Very Heavy) which was constituted on February 28, 1944; Inactivated on June 30, 1946^[3][4]

• Constituted in the Organized Reserve (Ohio) as the 485th Bombardment Squadron on March 31, 1924; Consolidated on December 5, 1936 with the 485th Aero Squadron; Inactivated by June 1937; disbanded on May 31, 1942
• Reconstituted and consolidated February 28, 1944 with the 485th Bombardment Squadron (Very Heavy); inactivated on June 10, 1946^[3]

• Constituted in the Organized Reserve (Indiana) as the 486th Bombardment Squadron on March 31, 1924; Consolidated on December 5, 1936 with the 486th Aero Squadron
• Inactivated by March 1930; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Kentucky) as the 487th Bombardment Squadron on March 31, 1924; Consolidated on December 5, 1936 with the 487th Aero Squadron
• Inactivated by March 1930; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Washington) as the 489th Bombardment Squadron on March 31, 1924. The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft; Consolidated in June 1932 with the 489th Aero Squadron; Inactivated on January 30, 1942 by relief of personnel
• Consolidated (1958) with 489th Bombardment Squadron (Medium) which was constituted on August 10, 1942; Discontinued, and inactivated on January 1, 1962^[3][4]

Reactivated as the 489th Reconnaissance Squadron on August 26, 2011 at Beale Air Force Base, California

• Constituted in the Organized Reserve (Washington) as the 490th Bombardment Squadron on March 31, 1924; Consolidated on December 7, 1936 with the 490th Aero Squadron
• Inactivated on March 2, 1937; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Washington) as the 491st Bombardment Squadron on March 31, 1924; Consolidated on December 5, 1936 with the 491st Aero Squadron; Inactivated on March 2, 1937; disbanded on May 31, 1942
• Consolidated (1958) with 491st Bombardment Squadron (Medium) which was constituted on August 14, 1942; Discontinued, and inactivated, on June 25, 1961^[3][4]

• Constituted in the Organized Reserve (Washington) as the 492d Bombardment Squadron on March 31, 1924; Consolidated on December 5, 1936 with the 492d Aero Squadron; Inactivated on March 2, 1937; disbanded on May 31, 1942
• Consolidated (1960) with 492d Bombardment Squadron (Heavy) which was constituted on September 19, 1942; Discontinued, and inactivated on February 1, 1963^[3][4]

• Constituted in the Organized Reserve (Wisconsin) as the 493d Bombardment Squadron on March 31, 1924; Consolidated on December 7, 1936 with the 493d Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Wisconsin) as the 494th Bombardment Squadron on March 31, 1924; Consolidated on December 7, 1936 with the 494th Aero Squadron
• Disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Wisconsin) as the 495th Bombardment Squadron on March 31, 1924; Consolidated on December 7, 1936 with the 495th Aero Squadron
• Inactivated on December 1, 1929; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 501st Pursuit Squadron on October 15, 1921; Reorganized and re-designated as the 501st Transport Squadron on October 1, 1933; Consolidated on December 7, 1936 with the 501st Aero Squadron
• Inactivated by December 7, 1941; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 502d Pursuit Squadron on October 15, 1921; Reorganized and re-designated as the 502d Transport Squadron on October 1, 1933; Consolidated on December 7, 1936 with the 502d Aero Squadron
• Inactivated on July 23, 1939; disbanded on May 31, 1942^[3]

• Constituted in the Organized Reserve (Pennsylvania) as the 503d Pursuit Squadron on October 15, 1921; Reorganized and re-designated as the 503d Transport Squadron on October 1, 1933; Consolidated on December 7, 1936 with the 503d Aero Squadron
• Disbanded on May 31, 1942^[3]