Family Group Sheet| HUSBAND | | David Jans van der Werf | | REF # | | 23890; | | MARRIAGE | 18 October 1782 | Workum | | MARRIAGE | 20 May 1777 | Jetske Innes ; Workum | | | | WIFE | | Leentje Johannes van Es | | REF # | | 27601; | | BIRTH | | Bolsward |
| | | CHILDREN | | 1. | Johannes Davids van der Werf MALE | | | BIRTH | 1784 | Workum | | DEATH | 23 August 1852 | Mirns en Bakhuizen, Gaasterland, Friesland, Netherlands | | REF # | | 22330; |
| | 2. | Sietse van der Werf MALE | | | BIRTH | 15 July 1785 | Workum |
| | 3. | Durk Davids van der Werf MALE | | | BIRTH | 25 February 1787 | Workum |
| | 4. | Sieberich van der Werf FEMALE | | | BIRTH | 26 November 1788 | Workum |
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