Jacobus Grooteman was born 6 November 1790 in Onderdijk to Jacob Grooteman (1752-1823) and Trijntje Brandsen (1743-1813) and died 15 October 1868 Onderdijk of unspecified causes. He married Marijtje Tiet (1797-1884) 17 February 1822 in Wervershoof.
Children
| Name | Birth | Death | Joined with |
| Trijntje Grooteman (1822-1909) | 15 May 1822 Onderdijk, North Holland, Netherlands | 8 December 1909 Wervershoof, North Holland, Netherlands | Pieter Willes (1823-1848) Pieter Meester (1817-1859) Dirk Dekker (1816-1900) |
| Aaltje Grooteman (1827-1897) | |||
| Jacob Grooteman (1833-1919) | |||