Family Group Sheet| FATHER | | Klaas Wiebe Folkertsma | | BIRTH | 5 March 1941 | Dieren | | REF # | | 23124; | | FATHER | Douwe Baukes Folkertsma | | MOTHER | Siebrigje Holkema | | | | MOTHER | | G. Behrens | | REF # | | 23129; |
| | | CHILDREN | | 1. | Frank Folkertsma MALE | | | REF # | | 23130; |
| | 2. | Maaike Folkertsma FEMALE | | | REF # | | 23131; |
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