| Name | Role | Place | Source | |
|---|---|---|---|---|
| Cornelis Johannes Gerardus Petrus van Leeuwen | Child | 1858 | Schiedam | Civil registration births |
| Cornelis Johannes Gerardus Petrus van Leeuwen | Deceased | 1876 | Kethel | Civil registration deaths |
| Cornelis Johannes Gerardus Petrus van Leeuwen | Child | 1858 | Schiedam | Civil registration births |
| Cornelis Johannes Gerardus Petrus van Leeuwen | Deceased | 1876 | Kethel, Schiedam | Civil registration deaths |
| Gerardus Cornelis Johannes van Leeuwen | Registered | 1906 | Tilburg | Population register |
| Gerardus Cornelis Johannes van Leeuwen | Child | 1886 | Voorburg | Civil registration births |
| Gerardus Cornelis Johannes van Leeuwen | Registered | 1880 | Voorburg | Population register |
| Gerardus Cornelis Johannes van Leeuwen | Deceased | 1886 | Voorburg | Civil registration deaths |
| Johannes Cornelis Gerardus van Leeuwen | Registered | 1922 | Population register |
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