| Name | Role | Place | Source | |
|---|---|---|---|---|
| Isaack Simonss | Father | 1620 | West-Souburg | Church records baptisms |
| Isaack Simonss | Father | West-Souburg | Church records baptisms | |
| Isaack van der Loeff, zoon Susanna Juliens en + Cornelis Simonss van der Loeff | Constituant | 1682 | Notarial records |
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