| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jan Claasen Helperich | Registered | 1644 | Amsterdam | Notarial records |
| Jan Claesz Helperich | Registered | 1630 | Amsterdam | Notarial records |
| Jan Helperich | Groom | 1693 | Kerkelijke gemeente Groningen | Church records marriages |
| Jan Helperich | Father | 1663 | Ruinerwold | Church records baptisms |
| Jan Helperich | Father | 1663 | Ruinerwold | Church records baptisms |
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