 Maria Rika Polak - BenaventeBorn 18-4-1914 Amsterdam, Netherland, died 4- jun 1943 Sobibor-Biala Podleska, Poland, 28 or 29 years. Daughter of Jacob Polak/ de Met and Lena Benavente/ Querid Marriage/ Related to:  Isidoor de Vries - van der BokkeBorn 12-7-1912 Amsterdam, Netherland, died 4- jun 1943 Sobibor-Biala Podleska, Poland, 30 or 31 years. Occupation: Diamond polisher. Son of Samson de Vries and Branca van der Bokke | |||