Family Group Sheet| FATHER | | Jacob NN | | REF # | | 21729; | | | | MOTHER | |
| | | CHILDREN | | 1. | Hessel Jacobs MALE | | | BIRTH | 1670 | Workum | | REF # | | 21730; |
| | 2. | Cornelis Jacobs MALE | | | BIRTH | 1672 | Workum | | REF # | | 21731; |
| | 3. | IJsbrand Jacobs MALE | | | BIRTH | 1674 | Workum | | REF # | | 21565; | | MARRIAGE | 18 January 1711 | Pijttje Sijtses; Pingjum | | MARRIAGE | 27 April 1721 | Trijntje Ybles; Pingjum |
| | 4. | Trijntje Jacobs FEMALE | | | BIRTH | 1678 | Workum | | REF # | | 21732; |
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