| Name | Role | Place | Source | |
|---|---|---|---|---|
| Bettina Lewkowicz-van Leeuwen | Registered | 's-Gravenhage, Amsterdam | Individual Files | |
| Bettina van Leeuwen | Registered | 1913 | 's-Gravenhage | Population register |
| Bettina van Leeuwen | Bride | 1939 | 's-Gravenhage, Amsterdam | Civil registration marriages |
| Bettina van Leeuwen | Mother | 1943 | Oświęcim Polen | Civil registration deaths |
| Bettina van Leeuwen | Deceased | 1943 | Oświęcim Polen, Amsterdam | Civil registration deaths |
| Bettina van Leeuwen | Mother | 1943 | Oświęcim Polen | Civil registration deaths |
| Bettina van Leeuwen | Husband | 1944 | Oświęcim Polen | Civil registration deaths |
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