| Johannes Cornelis Onck |
| Johannes Cornelis Onck | |
| B: | 1 Nov 1842 |
| Arnhem, Gelderland, NLD | |
| D: | 22 Sep 1877 |
| Arnhem, Gelderland, NLD | |
| Susanna Christina Hoendervanger | |
| B: | 14 Mar 1841 |
| Rhenen, Utrecht, NLD | |
| M: | 8 May 1867 |
| Arnhem, Gelderland, NLD | |
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