Simon Glancey has submitted the following:
Sgt. Armstrong was the Flight Engineer aboard Short Stirling I W7535 HA-C of 218 (Gold Coast) Squadron, which was lost on a mission to Gennevilliers. The Stirling crashed in the north-western suburbs of Paris at Colombes, with the loss of all eight crew members.
Royal Air Force Bomber Command Losses of the Second World War: 1942; W.R. Chorley; 1994; Midland Counties Publications; ISBN 0 904597 89 X, page 99
