The W. Proudfoot crew of 427 Squadron.

L to R: F/O W. Proudfoot RCAF, Pilot;  F/O J. Murphy RCAF, Navigator;
F/O E. Pawlitza RCAF, Bomb aimer; F/O E. Simonato RCAF, Wireless Op; Sgt M. Taylor RAF, Flight engineer
F/O P. Koleda RCAF, Mid-upper gunner; F/O A. Hall RCAF, Rear gunner.

This crew they failed to return on June 12/13, 1944. 
Their aircraft, Halifax III LW-165 coded ZL-M,  was shot down by a nightfighter while on operations to Arras.