On March 24/25, 1944, Lancaster ND650 of 12 Squadron crashed while returning from a raid on Berlin. Four crew members were killed: Pilot - F/O Frederick Charles Hentsch; F/Eng. - Sgt. Robert Morrison Cringle; WOp - Sgt. Eric Birch; and, AG - F/O Denys Ronald Wimlett. The navigator, P/O Carl Rudyk (RCAF), was severely wounded, imprisoned in Stalag Luft III and had his leg amputated. He was later repatriated to Canada aboard the mercy ship Grispholm. Sgt. A.C. Summers also became a POW and Sgt. A.J. Keveren was an evader.

I am interested in learning more about this flight and the men involved. I would especially like to make contact with any relatives of these men (I have successfully made contact with several relatives of Carl Rudyk, but would like to learn more about the other men in this crew).

Any assistance or advice would be greatly appreciated.