Family Group Sheet| HUSBAND | | Roelof Derks Kok | | BIRTH | 5 February 1753 | Ruinerwold | | DEATH | 23 November 1828 | Ruinerwold | | MARRIAGE | 16 June 1776 | Ruinerwold | | | | WIFE | | Albertje Klaas | | BIRTH | 1757 | Ruinerwold | | DEATH | 1798 | Ruinerwold |
| | | CHILDREN | | 1. | Roelofje Roelofs Kok FEMALE | | | BIRTH | 1789 | | | DEATH | 28 February 1855 | Avereest | | MARRIAGE | 18 October 1807 | Jan Klaas Bakker; Ruinerwold |
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