| Name | Role | Place | Source | |
|---|---|---|---|---|
| Cobus van Leeuwen | Mention | 1767 | Bodegraven | Notarial records |
| Cobus van Leeuwen | Father | 1686 | Amsterdam | Church records baptisms |
| Cobus van Leeuwen | Father | 1746 | Teckop | Church records baptisms |
| Cobus van Leeuwen | Father | 1686 | Amsterdam | Church records baptisms |
| Cobus van Leeuwen | Father | 1746 | Teckop | Church records baptisms |
| Jacob Cobus van Leeuwen | Witness | 1769 | Oijen | Church records baptisms |
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