| Name | Role | Place | Source | |
|---|---|---|---|---|
| Johannes Lauwrencius van Leeuwen | Father | 1925 | Naaldwijk | Civil registration deaths |
| Johannes Lauwrencius van Leeuwen | Father | 1950 | Delft | Civil registration deaths |
| Johannes Lauwrencius van Leeuwen | Child | 1892 | Stompwijk | Civil registration births |
| Johannes Lauwrencius van Leeuwen | Father | 1950 | Delft | Civil registration deaths |
| Johannes Lauwrencius van Leeuwen | Father | 1921 | Naaldwijk | Civil registration deaths |
| Johannes Lauwrencius van Leeuwen | Groom | 1920 | Wateringen | Civil registration marriages |
| Johannes Lauwrencius van Leeuwen | Registered | 1870 | Stompwijk | Population register |
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