Poland-based nazi Oflag 64 Altburgund (Szubin) was in fact a camp for approx. 2000 Allied POWs from Australia, UK and USA mainly. According to the Polish sources only one American officer died in this camp. Tha camp was liberated by the Soviets on January 21st, 1945. Today there is a monument at Szubin for all the POWs executed or murdered by various nazi methods.
From this camp he went to Oflag 64 in Schubin Poland and later was sent to Oflag 13b.