| Name | Role | Place | Source | |
|---|---|---|---|---|
| Willem Dirksz van Leeuwen | Father | 1728 | Bleiswijk | Church records baptisms |
| Willem Dirksz van Leeuwen | Kind van | 1723 | Woerden | Church records burials |
| Willem Dirksz van Leeuwen | Kind van | 1724 | Woerden | Church records burials |
| Willem Dirksz van Leeuwen | Witness | 1761 | Leiden | |
| Willem Dirksz van Leeuwen | Registered | 1665 | Leiden |
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