Isaac Cohen was a son of Meijer Cohen and Zilpa Kater. He married in Arnhem on 15 February 1911 to Bertha Kruijer, daughter of Lammert Kruijer and Clara Swaab. The couple had five children together of whom one, only 9 days old, died. The other children were David, Meijer, Clara and Israel. Bertha Kruijer passed away on 1 November 1915. Isaac remarried in Amsterdam to Marianne Stokvis, daugther of…