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Izak Colthof, birth 5 MRT 1892 Opsterland, Friesland, Nederland, died 12 Feb 1943 Auschwitz, Katowice, Polen, occupation: Rabinaal Opzichter, son of Benjamin Levi Colthof and Esther Slager
to: Jenny Hammelberg, birth 26 Dec 1888 Nijkerk, Gelderland, Nederland, died 12 Feb 1943 Auschwitz, Katowice, Polen |
| 1) Esther Colthof, birth 1917 Twijzel, Achtkarspelen, Friesland, Nederland, died 22 MRT 1922 Groningen, Groningen, Nederland |