I think this must be Flt-Lt (later Sqn Ldr, Wing Cmdr from 1939, Grp Capt, CBE) Edward Hugh Markham David, who served in the Navy in WWI, as a cadet at Osborne in 1914 and Dartmouth, and a midshipman in the 'St Vincent', 'Whiteley', and 'Revenge'. He was one the very first tranche who trained at RAF Cranwell when it opened in 1920.

b. 10 Jan 1901 in Monmouth, he was posted to Iraq in 1921-25 and Aden in 1932-4, then became Adjutant of 604 (County of Middlesex) Squadron, Auxiliary Air Force.

DFC in September 1941; retired and moved to Malta after WWII; his daughter Diana Elizabeth Markham married in 1952.

d. 1957