I can add only a little - he was not RN, but rather RNR. Shown in Navy Lists as Midshipman, Royal Navy Reserve, seniority 1 May 1922.
Promoted Sub-Lieutenant RNR 7 March 1928
Placed on the Retired List (RNR) 24 September 1937 at own request.
1940 - recalled to service
Promoted to Lieutenant Commander, RNR, 21 February 1944
London Gazette shows he was awarded two DSO's:
1st gazetted 20 Jan 1942 whilst CO of caique Hedgehog
2nd gazetted 3 Dec 1946 (i.e. posthumously) "for gallantry and determination of the highest order in clandestine operations behind enemy lines in Greece Jan-Feb 1943".
Also awarded Greek War Cross (3rd class), gazette of 11 August 1942