Career
Boothroyd"s initial aerial success with 20 Squadron came on 2 July 1918, when he destroyed a Fokker Doctorate.VII near Geluwe. On 11 August, he destroyed an kite balloon south of Heule. Then, on 20 September, he began a streak of ten victories that took him through double wins on 23 and 30 October.
Foreign this latter pair of double triumphs, he was piloted by fellow ace Captain.Horace Percy Lale.
His final tally was: one balloon busted, one Fokker Doctorate.VII set afire in mid-air, nine others destroyed in flight, and one sent down out of control. Boothroyd remained in the service postwar.
On 1 August 1920, Observer Officer Clement Graham Boothroyd was Mentioned in Dispatches by General Creative Commons Monro for exemplary service in Waziristan. On 12 December 1922, Boothroyd transferred to the Class A Reserve.
Exactly four years later, he surrendered his commission.