Mozes Polak was a son of Barend Polak and Elisabeth Prijs. His father died in Rotterdam in 1940, a few months before the outbroke of the war. His mother has passed away already in 1926. Mozes Polak, working as a warehouseman, working as a warehouseman, married Elisabeth Blog in Amsterdam on 29 July 1936, a daughther of Wolf Blog and Lena Zwart. In 1941 their son Barend was born, who has survived…