| David Slager (1863 - 1945) |
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| Klaartje Gokkes (1870 - 1944) |
| Salomon de Groot | Betje Slager |
| b. 2 Apr 1892, Steenwijk, Overijessel, Netherlands. d. 7 May 1943, Sobibor Death Camp, Biala Podleska, Poland. bur. occ. edu. rel. |
b. 20 Aug 1895, Steenwijk, Overijessel, Netherlands. d. 7 May 1943, Sobibor Death Camp, Biala Podleska, Poland. bur. occ. edu. rel. |
| Mannus de Groot Klara de Groot David de Groot |