| Name | Role | Place | Source | |
|---|---|---|---|---|
| Johan Herman Alberda | Creditor | 1883 | Ooststellingwerf | Notarial records |
| Johan Herman Alberda | Creditor | 1882 | Ooststellingwerf | Notarial records |
| Johan Herman Alberda | Creditor | 1883 | Ooststellingwerf | Notarial records |
| Johan Herman Alberda | Creditor | 1883 | Ooststellingwerf | Notarial records |
| Johan Herman Alberda | Mention | 1869 | Menaldumadeel | Notarial records |
| Johan Herman Alberda | Mention | 1869 | Menaldumadeel | Notarial records |
| Johan Herman Alberda | Mention | 1867 | Workum | Notarial records |
| Johan Herman Alberda | Mention | 1895 | Leeuwarden | Notarial records |
| Johan Herman Alberda | Seller | 1882 | Ooststellingwerf | Notarial records |
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