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Cosman Troostwijk, birth 28 Jun 1876 Leeuwarden, Friesland, Nederland, died 23 Apr 1943 Sobibor, Biala Podleska, Polen, son of Israel Troostwijk and Kaatje Grootkerk
to: N.N. |
| 1) Kaatje Troostwijk, birth 8 May 1903 Leeuwarden, Friesland, Nederland, died 23 Jul 1943 Sobibor, Biala Podleska, Polen |
| 2) Esther Troostwijk, birth 3 May 1905 Leeuwarden, Friesland, Nederland |