 Jonas Polak - OestermanBorn 27-12-1867 Amsterdam, Netherland, died 9- Jul 1943 Sobibor-Biala Podleska, Poland, 75 or 76 years. Son of Simon Machiel Polak and Saartje Salomon Oesterman - Haring Married to:  Heintje Mok - de VriesBorn 11-11-1865 Haarlem, Netherland, died 9- Jul 1943 Sobibor-Biala Podleska, Poland, 77 or 78 years. Daughter of Jacob Philip Mok - Polak and Roosje de Vries - Vlessenaar | |