| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jacob Arons Colthof | Father of groom | 1847 | Groningen | Civil registration marriages |
| Jacob Arons Colthof | Father | 1912 | Schildwolde | Civil registration deaths |
| Jacob Arons Colthof | Seller | 1826 | Heerenveen | Notarial records |
| Jacob Arons Colthof | Debtor | 1825 | Heerenveen | Notarial records |
| Jacob Arons Colthof | Debtor | 1826 | Heerenveen | Notarial records |
| Jacob Arons Colthof | Father | 1819 | Leeuwarden | Civil registration births |
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