| Father | Frederikus Carolus Fijnaut (1832 - 1918) |
| Mother | Coletta Wattee (1839 - 1897) |
| Sibling | Living |
| Sibling | Nathalie Sophia Fijnaut (1860 - ) |
| Sibling | Emilius Fijnaut (1863 - ) |
| Sibling | Johannes Franciscus Fijnaut (1865 - 1865) |
| Sibling | Johannes Franciscus Fijnaut (1866 - 1904) |
| Sibling | Clementina Amelia Fijnaut (1868 - 1935) |
| Sibling | Jacobus Bernardus Fijnaut (1870 - 1941) |
| Sibling | Celestina Maria Fijnaut (1872 - 1949) |
| Sibling | Amelia Stephania Fijnaut (1874 - 1952) |
| Sibling | Edward Joseph Finewood (1875 - 1949) |
| Sibling | Frederikus Carolus Fijnaut (1877 - 1877) |
| Sibling | Mathilda Louisa Fijnaut (1878 - ) |
| Sibling | Frederikus Carolus Fijnaut (1880 - 1938) |