| Name | Role | Place | Source | |
|---|---|---|---|---|
| Pieternelle Isaks | Mother | 1644 | Ritthem | Church records baptisms |
| Pieternelle Isaks | Witness | 1719 | Sint-Annaland | Church records baptisms |
| Pieternelle Isaks | Witness | 1717 | Sint-Annaland | Church records baptisms |
| Pieternelle Isaks van de Vos | Mother | 1717 | Sassenheim |
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