The son of George Martin and Mary Frances (Koons) Gillet, Francis Warrington Gillet graduated from the University of Virginia (class of 1916) before he joined the United States Air Service on 1 April 1917. When the United States entered the war, Gillet was declared too young to be commissioned. He obtained a discharge on 25 July 1917 and went to Canada where he joined the Royal Flying Corps. 2nd Lieutenant Gillet received Royal Aero Club Aviator's Certificate 7017 on 29 December 1917. Upon completing his training in England, he was posted to 79 Squadron in France on 29 March 1918. Flying the Sopwith Dolphin, Gillet scored twenty victories by the end of the war. In addition to three kite balloons, he was credited with destroying fourteen Fokker D.VIIs. Post-war, he returned home to Maryland and was a liquor distributor, a realtor and was active in thoroughbred horse racing.
Appears as Frederick Warrington Gillet and Frederick Warrington Gillett in some sources.
Great Britain, Royal Aero Club Aviators' Certificates, 1910-1950
Distinguished Flying Cross (DFC)
Lieut. Frederick Warrington Gillett.
When attacking a kite balloon, a two-seater guarding it advanced to engage him; Lieut. Gillett [sic] shot the machine down, and, turning to the balloon, which was being rapidly hauled down, he dropped two bombs at the winch and fired a drum into the balloon, which deflated but did not catch fire. In addition to this two-seater, this officer has accounted for two other machines and a kite balloon.
Lieut. (A./Capt.) Frederick Warrington Gillett, D.F.C. (FRANCE)
A pilot of great dash and skill who, since 3rd August, has destroyed twelve hostile aircraft. On 29th September, when on lowline patrol, he attacked three Fokkers, driving down one, which fell in flames.