 Izak Grootkerk - de JongBorn 31-10-1882 Leeuwarden-Friesland, Netherland, died 4- jun 1943 Sobibor-Biala Podleska, Poland, 60 or 61 years. Occupation: Commercial agent. Son of Jacob Grootkerk/ Fran and Sophia de Jong/ Visse Married 4- aug 1911 Amsterdam, Netherland (31 years married) to:  Pauline Servos - SimonBorn 27-1-1885 Krefeld, Netherland, died 4- jun 1943 Sobibor-Biala Podleska, Poland, 57 or 58 years. Daughter of Salomon Servos and Regina Simon | |||