| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jecson | Registered | 1721 | Amsterdam | Notarial records |
| Jecson | Registered | 1721 | Amsterdam | Notarial records |
| Jecson | Registered | 1721 | Amsterdam | Notarial records |
| Jecson | Registered | 1721 | Amsterdam | Notarial records |
| Maria Jecson | Mother | 1809 | Geertruidenberg | Church records baptisms |
| Willem Jecson | Registered | 1705 | Amsterdam | Notarial records |
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