Achterhoek Ancestors
Family: Garrit Jan Alefs / Aleijda Grevers (F4912)
m. 20 Jun 1779Jan Hendrik Alefs (1721- ) 
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Agnes Maria Vrenegoor ( -1829)
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| Anna Geertruid Alefs (1745- ) |
| Janna Harmina Alefs (1748- ) |
| Jan Berent Alefs (1754- ) |
| Garrit Jan Alefs (1751- )
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| Aleijda Grevers (1749-1827)
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| Janna Aleijda Alefs (1780- ) |
| Janna Lijsebet Alefs (1781- ) |
| Janna Hendrika Alefs (1783- ) |
Johannes Theodorus Harmanus Alefs (1785- )  |
| Johannes Hendrikus Wilhelmus Alefs (1788- ) |
| Johannes Doris Alefs (1790- ) |
| Janna Maria Alefs (1792- ) |