Jan Jonker was born 10 August 1806 in Grootebroek, North Holland, Netherlands to Pieter Jonker (1783-1812) and Antje Buijs (1783-1834) and died 26 April 1848 Andijk, North Holland, Netherlands of unspecified causes. He married Maartje Kooter (1798-1860) 25 November 1837 in Wervershoof, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Antje Jonker (1838-1927) | 24 September 1838 Andijk, North Holland, Netherlands | 11 January 1927 Andijk, North Holland, Netherlands | Frans Grooteman (1835-1891) |
| Arien Jonker (1840-1923) | |||
Siblings
| Name | Birth | Death | Joined with |
| Geertje Jonker (1804-1884) | |||
| Jan Jonker (1806-1848) | 10 August 1806 Grootebroek, North Holland, Netherlands | 26 April 1848 Andijk, North Holland, Netherlands | Maartje Kooter (1798-1860) |
| Marijtje Jonker (1808-1848) | |||
| Neeltje Jonker (1811-1847) | |||
Residences
Footnotes (including sources)
| ‡ General |