| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jochem Andries Cock | Employee | 1750 | Middelburg | Personnel-administration |
| Jochem Cock | Registered | 1640 | Amsterdam | Notarial records |
| Jochem Cock | Child | 1701 | Lopik | Church records baptisms |
| Jochem Cock | Groom | 1647 | Amsterdam | Register of notices of marriage |
| Jochem Cock | Child | 1701 | Lopik | Church records baptisms |
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