| Name | Role | Place | Source | |
|---|---|---|---|---|
| Adrianus Cornelus van Leeuwen | Registered | 1875 | Standdaarbuiten | Population register |
| Adrianus Cornelus van Leeuwen | Registered | 1876 | Gouda | Population register |
| Cornelus Adrianus van Leeuwen | Mention | 1891 | Nijmegen | Notarial records |
| Cornelus Marius Adrianus Johannes van Leeuwen | Child | 1883 | Rotterdam | Civil registration births |
| Cornelus Marius Adrianus Johannes van Leeuwen | Child | 1883 | Rotterdam | Civil registration births |
| Jacob Adrianus Cornelus Van Leeuwen | Child | 1831 | Zaltbommel | Civil registration births |
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