Family Group Sheet| FATHER | | Jan Jans Monkelbaan | | BIRTH | 1786 | Harich | | FATHER | Jan Johannes Monkelbaan | | MOTHER | Jantjen Jans Postma | | | | MOTHER | | Hiltje Thomas Asma | | BIRTH | 1790 | Wyckel | | DEATH | 1868 | | | FATHER | Thomas Willems Asma | | MOTHER | Marijke Doekes van der Meer |
| | | CHILDREN | | 1. | Jan Jans Monkelbaan MALE | | | BIRTH | 1820 | Wyckel |
| | 2. | Willemke Jans Monkelbaan FEMALE | | | BIRTH | 29 October 1832 | Sondel | | DEATH | 24 April 1917 | Sondel |
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