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Jacob de Groot, birth 5 Jul 1901 Amsterdam, died 31 Jan 1943 Auschwitz, Poland
to: Rebecca van Tijn, birth 10 Jun 1897 Amersfoort, died 28 Sep 1942 Auschwitz, Poland, daughter of Izak van Tijn and Esther van Leer |
| 1) Maria Judith de Groot, birth 8 Nov 1929 Amsterdam, died 28 Sep 1942 Auschwitz, Poland |