Hijman Elzas was a son of Mozes Elizas and Esther Koopman. He married 18 March 1931 to Dina Koopman, a daughter of Isaac Koopman and Schoontje Jacobs. She passed away however on 5 May 1938, and Hijman Elzas remarried on 6 December 1939 to Sara Boeken, a daughter of Mozes Boeken and Debora Vogel.
City Archive of Amsterdam, archive card of Hijman Elzas and website www.wiewaswie.nl.