Personal Number: 124538 Rank: Second Lieutenant Name: Aylmer Douglas TRYON Unit: Grenadier Guards London Gazette : 2 April 1940 https://www.thegazette.co.uk/London/issue/34821/supplement/1901/data.pdf FOOT GUARDS. The undermentioned Cadets, from Sandhurst and 163rd Officer Cadet Training Units, to be 2nd Lts. 23rd Mar. 1940:— Gren. G'ds. Aylmer Douglas TRYON (124538).
See also Person Page His brother: 34928 Lord Charles George Vivian TRYON, GCVO, KCB, DSO, MiD, 4 Grenadier Guards