| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jan Coerts Oosterloo | Debtor | 1846 | Heerenveen | Notarial records |
| Jan Coerts Oosterloo | Mention | 1834 | Bolsward | Notarial records |
| Jan Coerts Oosterloo | Father | 1849 | Weststellingwerf | Civil registration births |
| Jan Coerts Oosterloo | Deceased | 1870 | Weststellingwerf | Civil registration deaths |
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