Took off from Oakington at 23:25 in Stirling Mk I (Sqn code MG-C Bomber Command) on an operation to Emden Germany.
Homeward-bound, the aircraft was shot down by a night fighter and crashed in the North Sea 3.5 km W of Bergen an Zee, Noord-Holland
Killed includes Calvert: Pilot Officer James Robert Heslop RCAF J/7039 KIA Bergen General Cemetery Plot 1. Row B. Grave 7. Flight Sergeant Robert Nelson Parham RCAF R/78112 KIA Runnymede Memorial Panel 106. Pilot Officer Byron Adair Trapp RCAF J/7202 KIA Runnymede Memorial Panel 101. F/Lt Alwin Woodgate Bevan RAF KIA Bergen General Cemetery Plot 1. Row B. Grave 4. Sergeant Andrew Cadden RAF KIA Bergen General Cemetery Plot 1. Row B. Grave 10. Sergeant Gerald Bamford Granshaw RAF KIA Runnymede Memorial Panel 84. Sergeant Jack Herbert Williams RAF KIA Bergen-Op-Zoom War Cemetery Grave 29. B. 11.
