| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jacobus Justinus Wilhelm van Leeuwenstein | Registered | Culemborg | Population register | |
| Wilhelm Jacobus Leeuwenstein | Deceased | 1917 | Rotterdam | Civil registration deaths |
| Wilhelm Jacobus Leeuwenstein | Child | 1913 | Rotterdam | Civil registration births |
| Wilhelm Jacobus Leeuwenstein | Deceased | 1917 | Rotterdam | Civil registration deaths |
| Wilhelm Jacobus Leeuwenstein | Child | 1913 | Rotterdam | Civil registration births |
| Wilhelm Jacobus Leeuwenstein | Child | 1920 | Rotterdam | Civil registration births |
| Wilhelm Jakobus Leeuvenstein | Tewerkgestelde | 's-Gravenhage, Rotterdam | Workforce registration |
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