Family Group Sheet| FATHER | | NN Hardonk | | REF # | | 20145; | | | | MOTHER | | Petra Knip | | BIRTH | 31 March 1966 | | | REF # | | 834; | | MARRIAGE | 17 June 2008 | Sake Holkema; Haarlem |
| | | CHILDREN | | 1. | Joost Hardonk MALE | | | BIRTH | 25 November 1998 | | | REF # | | 20143; |
| | 2. | Wout Hardonk MALE | | | BIRTH | 10 February 2000 | | | REF # | | 20142; |
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