| Name | Role | Place | Source | |
|---|---|---|---|---|
| Isaack de Geer | Witness | 1732 | Leiden | |
| Isaack van de Geer | Father | 1621 | Amsterdam | Church records baptisms |
| Isaack van de Geer | Groom | 1670 | Amsterdam | Register of notices of marriage |
| Isaack van de Geer | Father | 1621 | Amsterdam | Church records baptisms |
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