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Untitled edit
This page originally claimed (unsourced) that his birth name was Robert Rosen. There seems to be agreement that he changed his name for professional reasons; an editor claiming to be his nephew commented in 2011 that his birth name was Max Rosen. "Family knowledge" is certainly a better source than "none", but a source should be given either way. –SJ+ 09:57, 21 February 2011 (UTC)