Family Group Sheet| HUSBAND | | Sake Holkema | | BIRTH | 25 March 1966 | Groningen | | REF # | | 47; | | MARRIAGE | 23 September 1998 | Groningen | | MARRIAGE | 17 June 2008 | Petra Knip; Haarlem | | FATHER | Jacob Holkema | | MOTHER | Annemarie Harder | | | | WIFE | | Ellen Frouwke Schaaf | | BIRTH | 10 December 1970 | Oudeschoot | | DEATH | 17 February 2007 | | | REF # | | 26854; |
| | | CHILDREN | | 1. | Gijsbert Jaap Holkema MALE | | | BIRTH | 19 June 2000 | Groningen | | REF # | | 835; |
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