In the first years of Genii magazine, there was a frequent contributor named Irving Joslyn. Does anyone have any information about him?
I saw one reference that seem to suggest that this may have been one of Larsen's pseudonyms when publishing tricks in Genii.
But then I found a reference to a lawyer named John W. Joslyn (born January 9, 1896), in a MUM May 1988 article stating that "... one of his best friends, the late William W. Larsen, Sr., who was a top criminal lawyer. Their courtroom battles were famous, often followed by lunch and magic tricks; for it was Larsen who introduced Joslyn to the art of prestidigitation..."
Any help would be appreciated.