Took off from Grimsby at 17::31 in Lancaster Mk I to bomb the Braunkohle-Benzin synthetic-oil complex at Karlsruhe Germany.
Shot down (means not found) and crashed at Questenberg, 4km NE of Rossla on the Nordhausen to Sangeerhausen road.
Killed: Flying Officer William Merton Chapman RCAF J/38421 KIA Berlin 1939-1945 War Cemetery grave 14. Z. 1. Pilot Officer James David Gibbons RCAF J/95299 KIA Berlin 1939-1945 War Cemetery Coll. grave 14. Z. 2-7. Pilot Officer Malcolm Stalker McMaster RCAF J/95358 KIA Berlin 1939-1945 War Cemetery Coll. grave 14. Z. 2-7. F/Lt Frederick Thomas Quigley RCAF J/25448 pilot KIA Berlin 1939-1945 War Cemetery Coll. grave 14. Z. 2-7. Flight Sergeant Ray Calvin Roller RCAF R/210007 KIA Berlin 1939-1945 War Cemetery Coll. grave 14. Z. 2-7. Flying Officer Herbert Otto Berger RAF KIA Berlin 1939-1945 War Cemetery Coll. grave 14. Z. 2-7. Sergeant John Humphries Guy RAF KIA Berlin 1939-1945 War Cemetery Coll. grave 14. Z. 2-7.
addendum2: F/0 K L Chapman and F/0 W M Chapman were brothers. Detail provided by Mr. & Mrs. W. Chapman, Meaford, On.
Cenotaph at Lakeview Cemetery, Meaford, Grey County, Ontario, Canada