F/Sgt Cooper was with 207 Sqdn. He was a crew member of Manchester I L7487 EM-N which took off from Waddington on a mission to Bremen. The aircraft crashed into the North Sea off Great Yarmouth.
Royal Air Force Bomber Command Losses of the Second World War: 1941. W.R. Chorley; 1993; Midland Counties Publications; ISBN 0 904597 87 3
John Stewart Cooper is remembered in the Monkwearmouth Roll of Honour M46.02