Born ‎5- Feb 1912 Amsterdam, Netherland, died ‎27-8-1943 Auschwitz, Katowice, Poland‎, 30 or 31 years. Son of Benzion Joachim Hirsch - Spitz and Sara Jetta van Zwanenberg - Van Leeuwen‏

Born ‎16-8-1909 Nijkerk, Netherland, died ‎25-8-1986 Amesfoort, Netherland‎, 76 or 77 years, ‎1st marriage to: David Hijman Hirsch/ van Zwanenber, ‎2nd marriage/ related to: Lion Slagter - van den Borg, ‎3rd marriage/ related to: N.N.. Daughter of Louis de Liever/ van der Wij and Bela van der Hak/ Heiman‏