| Family Tree Collection | Main index A-Z | Total index | Names | Sources | Index places | Groningen |
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Ester Izak Bollegraf, birth 3 Oct 1828 Groningen, Groningen, Nederland, daughter of Izaak Simon Bollegraf and Saartje Izak Smit |
| 1) Saartje Swalp, birth 2 Mar 1865 Groningen, Groningen, Nederland, died 25 Jan 1943 Auschwitz, Katowice, Polen |