If his 4th attempt was in 1944, then your uncle could actually have ended up in Buchenwald . This would explain why he was there and met the Luftwaffe officer from Dora. I will try to find a list with his name. The one I have would be the same as you have with the names of 168 allied airmen. As I told earlier I have hte greatest respect for the brave men who underwent this ordeal as well as for the Luftwaffe Officer who got them away from the Gestapo and probably saved many lives by doing so.

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