| Father | Hindrik Geerts Jonkman (1792 - 1859) |
| Mother | Geetje Pieters Datema (1790 - 1859) |
| Sibling | Harmke Hindriks Jonkman (1811 - 1868) |
| Sibling | Aaltje Hindriks Jonkman (1814 - ) |
| Sibling | Pieter Hindriks Jonkman (1816 - 1873) |
| Sibling | Geert Hindriks Jonkman (1819 - ) |
| Sibling | Meindert Hindriks Jonkman (1820 - 1878) |
| Sibling | Steven Hindriks Jonkman (1823 - 1896) |
| Sibling | Ekke Hindriks Jonkman (1825 - 1887) |
| Sibling | Annechien Jonkman (1827 - 1881) |
| Sibling | Hendrik Hindriks Jonkman (1830 - 1830) |
| Sibling | Gerrit Hindirks Jonkman (1834 - ) |
| Sibling | Trientje Hindriks Jonkman (1836 - 1907) |