Family Group Sheet| FATHER | | Johan Holkema | | BIRTH | 17 December 1953 | Sneek | | REF # | | 131; | | FATHER | Johannes Holkema | | MOTHER | Luitje Posthumus | | | | MOTHER | | Ans van den Berg | | REF # | | 138; |
| | | CHILDREN | | 1. | Menno Johan Holkema MALE | | | BIRTH | 27 September 1976 | Sneek | | REF # | | 139; |
| | 2. | Taco Holkema MALE | | | BIRTH | 16 July 1979 | Sneek | | REF # | | 140; |
| | 3. | Sanne Holkema FEMALE | | | BIRTH | 19 September 1986 | Sneek | | REF # | | 141; |
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