Group Captain Geoffrey Hornblower Cock MC (7 January 1896 – 16 February 1980) was a British World War I flying ace credited with thirteen aerial victories.
[2] Cock joined the 28th Battalion of the Artists Rifles Officers' Training Corps in December 1915.
He then used his two-seater for a string of successful combats lasting through 22 July; he flew with no fewer than seven different observers manning his guns, the most notable of whom was Victor White.
The final tally of his victories was five Albatros D.Vs destroyed, including one shared with fellow ace William Wright and his observer Edward Caufield-Kelly, and eight driven down out of control.
[1] Promoted to group captain on 1 November 1938,[8] he served during World War II, until retiring in 1943.