The victim of the Nazi regime Erich Kamke, who had taken over the lead in the new DMV after the war, had written to America to the émigré Max Dehn on June 15, 1948, asking him to rejoin the DMV, alluding to the circumstances under which Dehn had been expelled:
We assume that it was, in your case as well, one of the illegitimate expulsions, which were performed by the then acting chairman of the DMV in transgression of his rights.
Dehn replied on August 13, 1948:
Dear Mister Kamke,many thanks for your invitation to join the newly founded German Mathematicians’ Association [Deutsche Mathematiker-Vereinigung].
I bear no grudge of ...