Personal Number: 124540 Rank: Captain Name: Peter Arthur WALKER, MiD 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. Peter Arthur WALKER (124540). London Gazette : 4 April 1946 https://www.thegazette.co.uk/London/issue/37521/supplement/1690/data.pdf The KING has been graciously pleased to approve that the following be Mentioned in recognition of gallant and distinguished services in North-West Europe:— Foot Guards. Gren. G'ds. Capt. (temp.) P. A. WALKER (124540).
London Gazette : 4 April 1946 https://www.thegazette.co.uk/London/issue/37521/supplement/1672/data.pdf https://www.thegazette.co.uk/London/issue/37521/supplement/1690/data.pdf