| Name | Role | Place | Source | |
|---|---|---|---|---|
| Frederik Johannes Kalff | Registered | 1879 | Amsterdam | Population register |
| Frederik Johannes Kalff | Registered | 1879 | Amsterdam | Population register |
| Frederik Johannes Kalff | Groom | 1919 | Amsterdam | Civil registration marriages |
| Frederik Johannes Kalff | Registered | 1879 | Amsterdam | Population register |
| Frederik Johannes Kalff | Registered | 1879 | Amsterdam | Militia records |
| Frederik Johannes Kalff | Registered | 1879 | Amsterdam | Population register |
| Frederik Johannes Kalff | Partner | 1935 | Haarlem | Civil registration deaths |
| Johannes Frederik Kalff | Registered | 1861 | Amsterdam | Population register |
| Johannes Frederik Kalff | Registered | 1839 | Amsterdam | Population register |
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