David Irving’s comment

This is Evans’s confusion again. Most of the materials which I used were contemporary, diaries and letters. The memoirs written by Hitler’s staff, (e.g., Schaub, Below, Puttkamer, etc) which they allowed me to use, were often written in the first months after the war.

The Holocaust survivor testimony (about half a dozen all told, whom the Defence were very careful not to produce in court for cross-examination) was all spouted years later, and not infrequently on behalf of the Allies in war crimes trials.