| Name | Role | Place | Source | |
|---|---|---|---|---|
| Alice Felicité Leonie van Leeuwen | Deceased | 1940 | Aalsmeer | Civil registration deaths |
| Antonia Leonie van Leeuwen | Deceased | 1946 | Nieuwveen | Civil registration deaths |
| Antonia Leonie van Leeuwen | Deceased | 1946 | Nieuwveen, Woerden | |
| Marie Leonie Anne van Leeuwen | Child | 1915 | Maastricht | Civil registration births |
| Marie Leonie Anne van Leeuwen | Registered | Maastricht | Population register | |
| Marij Leonie van Leeuwen | Partner | 1946 | Zeist | Civil registration marriages |
| Mary Leonie van Leeuwen | Registered | 1913 | 's-Gravenhage | Population register |
| Mary Leonie van Leeuwen | Registered | 1913 | 's-Gravenhage | Population register |
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