| Name | Role | Place | Source | |
|---|---|---|---|---|
| Isaack Groen | Father | 1681 | Amsterdam | Church records baptisms |
| Isaack Groen | Father | 1681 | Amsterdam | Church records baptisms |
| Isaack Groen | Witness | 1688 | Rotterdam | Church records baptisms |
| Isaack Groen | Witness | 1688 | Rotterdam | Church records baptisms |
| Isaack Groen | Registered | 1780 | Amsterdam | Notarial records |
| Isaack van der Groen | Registered | 1788 | Amsterdam | Notarial records |
| Reinardus Isaack Groen | Registered | Alkmaar | Population register |
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