| Name | Role | Place | Source | |
|---|---|---|---|---|
| Gerard Munniks, zoon van + Isaack Munniks | Creditor | 1765 | Notarial records | |
| Isaack Gerard | Registered | 1770 | Amsterdam | Notarial records |
| Isaack Gerard | Deceased | Leiden | ||
| Isaack Gerard | Registered | 1678 | Leiden | |
| Isaack Gerard Jans Krak | Deceased | 1839 | Leeuwarden | Death duties files |
| Isaack Gerard Krak | Mention | 1839 | Leeuwarden | Notarial records |
| Isaack Gerard van Wachendorff | Registered | 1778 | Amsterdam | Notarial records |
| Isaack Gerard van Wachendorff, zoon | Heir apparent | 1754 | Notarial records |
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