List of World War I flying aces from the United States
Name Rank Units Notes
Hilbert Leigh Bair Lieutenant No . 24 Squadron RAF 25th Aero Squadron 6 victories ( 4 shared ) Transferred to Air Service , United States Army , October , 1918 Awarded : Distinguished Service Cross ( AS , USA ) Distinguished Flying Cross ( UK )
Louis Bennett Jr Lieutenant No . 40 Squadron RAF 12 victories ( 1 shared ) Killed in action : 24 August 1918
Charles Arthur Bissonette Lieutenant No . 24 Squadron RAF No . 64 Squadron RAF 6 victories ( 1 shared )
Harold Koch Boysen Lieutenant No . 66 Squadron RAF 5 victories ( 3 shared ) Awarded : Medal of Military Valor ( Italy )
Sydney MacGillvary Brown × Lieutenant No . 29 Squadron RAF 5 victories Awarded : Distinguished Flying Cross ( UK ) Croix de guerre
Archibald Buchanan Lieutenant No . 210 Squadron RAF 7 victories Royal Naval Air Service ( prior to 1 April 1918 ) Killed in action : 30 October 1918 Awarded : Distinguished Flying Cross ( UK ) Croix de guerre
Henry Robinson Clay Lieutenant No . 43 Squadron RAF 41st Aero Squadron 148th Aero Squadron 8 victories Transferred to Air Service , United States Army , September , 1918 Awarded : Distinguished Service Cross ( AS , USA ) Distinguished Flying Cross ( UK ) Silver Star Citation ( ×2 )
Lawrence Kingsley Callahan Lieutenant No . 85 Squadron RAF 148th Aero Squadron 5 victories Transferred to Air Service , United States Army , November , 1918 Awarded : Distinguished Flying Cross ( UK ) Silver Star Citation ( ×3 )
Alvin Andrew Callender Captain No . 32 Squadron RAF 8 victories Killed in action : 30 October 1918
Charles Gray Catto Lieutenant No . 45 Squadron RAF 8 victories ( 2 shared )
Eugene Seeley Coler Lieutenant No . 11 Squadron RAF 16 victories ( all shared with observer/gunner ) Awarded : Distinguished Flying Cross ( UK )
Ernest Sidney Tooker , alias : Norman Cooper Lieutenant No . 73 Squadron RAF 6 victories Awarded : Distinguished Flying Cross ( UK )
Roy Edward Dodds Captain No . 103 Squadron RAF No . 106 Squadron RAF 7 victories Awarded : Distinguished Flying Cross ( UK )
John Owen Donaldson Captain No . 32 Squadron RAF 7 victories Awarded : Distinguished Service Cross ( AS , USA ) Distinguished Flying Cross ( UK ) Croix de guerre ( Belgium )
Arthur Edmund Easterbrook Lieutenant No . 9 Squadron RAF 1st Aero Squadron 5 victories ( all shared ) , Flew as observer/gunner Transferred to Air Service , United States Army , October , 1917 Awarded : Distinguished Service Cross ( AS , USA ) ( ×2 )
Francis Warrington Gillet Captain No . 70 Squadron RAF 20 victories Awarded : Distinguished Flying Cross ( UK ) Croix de guerre ( Belgium )
John Sharpe Griffith Lieutenant No . 60 Squadron RAF 7 victories Awarded : Distinguished Flying Cross ( UK ) Order of St. Vladimir ( Russian Empire )
Frank Lucien Hale Captain No . 32 Squadron RAF No . 85 Squadron RAF 7 victories Awarded : Distinguished Flying Cross ( UK )
Lloyd Andrews Hamilton Lieutenant No . 3 Squadron RAF 17th Aero Squadron 10 victories ( 6 shared ) Transferred to Air Service , United States Army , June , 1918 Killed in action : 24 August 1918 Awarded : Distinguished Service Cross ( AS , USA ) Distinguished Flying Cross ( UK )
Harold Evans Hartney Lieutenant Colonel No . 20 Squadron RAF 27th Aero Squadron 185th Aero Squadron 1st Pursuit Group 7 victories ( 5 shared ) ; 1 unconfirmed . Transferred to Air Service , United States Army , June , 1918 Awarded : Distinguished Service Cross ( AS , USA ) Légion d'honneur Croix de guerre Medal of Military Valor ( Italy ) Silver Star Citation
Air aces -- Served with the Royal Flying Corps ( later Royal Air Force )
The following is a list of flying aces from the United States of America who served in World War I