| Name | Role | Place | Source | |
|---|---|---|---|---|
| Claas Fredricks | Father | 1680 | Amsterdam | Church records baptisms |
| Claas Fredricks | Aangeslagene | Hoogeveen | Tax register | |
| Claas Fredricks | Father | 1712 | Amsterdam | Church records baptisms |
| Claas Fredricks | Father | 1680 | Amsterdam | Church records baptisms |
| Claas Fredricks | Father | 1708 | Amsterdam | Church records baptisms |
| Claas Fredricks | Father | 1708 | Amsterdam | Church records baptisms |
| Claas Fredricks | Registered | 1717 | Amsterdam | Notarial records |
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