Willi Graf stays with Kistner family

I spent the night with the Kistner siblings, Schwarzwald Str. 100 or 108. A friend of mine named Dr. Heinz Bollinger used to live with the Kistners, and in fact he still does, but he was not there. I did not encounter any other persons in Freiburg whom I have not already named.

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Source: Sixth interrogation of Willi Graf, March 1, 1943