| Name | Role | Place | Source | |
|---|---|---|---|---|
| Maria Adelheid Gecks | Witness | 1777 | Rotterdam | Church records baptisms |
| Maria Adelheide Gecks | Registered | 1781 | Amsterdam | Notarial records |
| Maria Adelheide Gecks | Registered | 1781 | Amsterdam | Notarial records |
| Maria Adelheide Gecks | Registered | 1781 | Amsterdam | Notarial records |
| Maria Gecks | Registered | 1781 | Amsterdam | Notarial records |
| Maria Magdalena Gecks | Deceased | 1867 | Rotterdam | Civil registration deaths |
| Maria Magdalena Gecks | Deceased | 1867 | Rotterdam | Civil registration deaths |
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