| Name | Role | Place | Source | |
|---|---|---|---|---|
| Arina J. Leeuwenburg | Registered | 1881 | Barendrecht | Population register |
| Arina J. Leeuwenburg | Registered | 1881 | Barendrecht | Population register |
| J. Leeuwenburg | Passagier | 1950 | Tandjong Priok | Passenger registers |
| J. Leeuwenburg | Signatory | 1878 | 's-Gravenhage | Verzoekschriften |
| J. Leeuwenburg | Signatory | 1878 | 's-Gravenhage | Verzoekschriften |
| J. Leeuwenburg | Travelers | 1925 | New York | Passenger registers |
| J. Leeuwenburg | Travelers | 1966 | New York | Passenger registers |
| J. v. Breda-Leeuwenburg | Signatory | 1878 | 's-Gravenhage | Verzoekschriften |
| J. van Leeuwenburg | Travelers | 1920 | New York | Passenger registers |
| Maria J. Leeuwenburg | Registered | 1901 | Fijnaart en Heijningen | Population register |
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