| Name | Role | Place | Source | |
|---|---|---|---|---|
| Cornelis Stefaan Nicolaas van Leeuwen | Registered | 1919 | Amsterdam | Personal cards |
| Cornelis Stefaan Nicolaas van Leeuwen | Registered | 1919 | Amsterdam | Militia records |
| Cornelis Stefaan Nicolaas van Leeuwen | Registered | Leiden | ||
| Cornelis Stefaan Nicolaas van Leeuwen | Child | 1919 | Leiden |
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