| Name | Role | Place | Source | |
|---|---|---|---|---|
| Anna Maria Onstijn | Witness | 1768 | Amsterdam | Church records baptisms |
| Johanna Maria Onstijn | Registered | 1831 | Amsterdam | Population register |
| Maria Berns van Onstijn | Witness | 1749 | Arnhem | Church records baptisms |
| Maria Berns van Onstijn | Witness | 1749 | Arnhem | Church records baptisms |
| Maria Cornelia Maria Cornelia Onstijn | Registered | 1822 | 's-Hertogenbosch | Population register |
| Maria Onstijn | Witness | 1751 | Amsterdam | Church records baptisms |
| Maria Onstijn | Registered | 1810 | Breda | Notarial records |
| Maria Onstijn | Witness | 1777 | Groningen | Church records baptisms |
| Maria Onstijn | Witness | 1751 | Amsterdam | Church records baptisms |
| Maria Onstijn | Meter | 1803 | Breda | Church records baptisms |
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