| Name | Role | Place | Source | |
|---|---|---|---|---|
| Geertje Alberts Koffeman | Mother | 1805 | Urk | Church records baptisms |
| Geertje Alberts Koffeman | Deceased | 1856 | Urk | Civil registration deaths |
| Geertje Alberts Koffeman | Mother | 1807 | Urk | Church records baptisms |
| Geertje Alberts Koffeman | Mother | 1803 | Urk | Church records baptisms |
| Geertje Alberts Koffeman | Mother | 1903 | Den Helder | Civil registration deaths |
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