The W. Mark crew of 425 Squadron taken in 1944

From left to right: F/Sgt A. Alger, Rear Gunner; P.O R. Daniels, Navigator; F/O W. Mark, Pilot;
F/Sgt. W. Ketcham, Wireless Operator; F/O W. Wotherspoon, Bomb Aimer;
P/O A. McLean, Mid-Upper Gunner; Sgt J. Whyte, (RAF) Engineer.

Photo graciously supplied by W. H. Ketcham, the Wireless Operator.