Petronella Geertruida Cornelia Jonker – | | |
Susanna Jacoba Alberta Jonker – | | |
Johan Thomas Pieter Jonker – | | |
Alexander Josias Jonker – | | |
Hendrik Johannes Jonker – | | |
Elizabeth Johanna Christina Jonker – | | |
Jacobus Thomas Pieter Jonker – | | |
| | Pieter Theunis Barend Christiaan Jonker 1836–1924 Elizabeth Johanna Christina Fritz 1842–1901 Maria Dorothea Elizabeth Venter 1855–1936 |