| Name | Role | Place | Source | |
|---|---|---|---|---|
| Johannes Leonardus Nicolaas van Leeuwen | Deceased | 1868 | Leiden | |
| Johannes leonardus Nicolaas van Leeuwen | Child | 1867 | Leiden | |
| Nicolaas Leonardus Johannes van Leeuwen | Child | 1897 | Monster | Civil registration births |
| Nicolaas Leonardus Johannes van Leeuwen | Father | 1927 | 's-Gravenhage | Civil registration deaths |
| Nicolaas Leonardus Johannes van Leeuwen | Groom | 1925 | Monster | Civil registration marriages |
| Nicolaas Leonardus Johannes van Leeuwen | Partner | 1972 | 's-Gravenhage | Civil registration deaths |
| Nicolaas Leonardus Johannes van Leeuwen | Deceased | 1971 | 's-Gravenhage, Monster | Civil registration deaths |
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