| Name | Role | Place | Source | |
|---|---|---|---|---|
| Johan Witheyn | Registered | 1760 | Amsterdam | Notarial records |
| Johan Witheyn | Registered | 1759 | Amsterdam | Notarial records |
| Johan Witheyn | Registered | 1759 | Amsterdam | Notarial records |
| Johan Witheyn | Constituant | 1646 | Utrecht | Notarial records |
| Johan Witheyn | Buyer | 1649 | Notarial records | |
| Johan Witheyn | Constituant | 1646 | Notarial records | |
| Johan Witheyn | Constituant | 1661 | Notarial records | |
| Johan Witheyn | First party | 1655 | Notarial records | |
| Johan Witheyn, broer | Heir apparent | 1720 | Notarial records |
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