| Name | Role | Place | Source | |
|---|---|---|---|---|
| Gradus Iltink | Registered | 1823 | Wisch | Population register |
| Gradus Iltink | Registered | 1829 | Population register | |
| Gradus Iltink | Registered | 1826 | Population register | |
| Gradus Iltink | Registered | 1849 | Population register | |
| Gradus Iltink | Registered | 1823 | Doetinchem | Police register |
| Gradus Iltink | Registered | 1839 | Population register | |
| Gradus Iltink | Registered | 1823 | Doetinchem | Police register |
| Gradus Iltink | Registered | Wisch | Population register | |
| Gradus Iltink | Registered | 1850 | Varsseveld | Notarial records |
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