| Name | Role | Place | Source | |
|---|---|---|---|---|
| Isaack Marcus | Registered | 1635 | Amsterdam | Notarial records |
| Isaack Marcus | Groom | 1676 | Amsterdam | Register of notices of marriage |
| Isaack Marcus Bavelaer | Witness | 1647 | Leiden | |
| Marcus Isaack | Borg | 1657 | Leiden | |
| Marcus Isaack | Borg | 1651 | Leiden | |
| Marcus Isaack | Borg | 1619 | Leiden | |
| Marcus Isaack | Witness | 1655 | Leiden | |
| Marcus Isaack | Borg | 1643 | Leiden | |
| Marcus Isaack | Borg | 1656 | Leiden |
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