 | Joseph William Thackwray (1835- ) |
 | Mary Elizabeth Hartley (1837- ) |
| Joseph Johannes van Dyk (1841- ) 
|
| Johanna Maria Elizabeth Kasselman (1842-1930)
|
| Susanna Maria van Dyk (1864- ) |
| Jacoba Hendrina van Dyk (1867- ) |
| Jacobus Nicolaas van Dyk (1868-1941)  |
| Johanna Maria Josefina van Dyk (1870- ) |
| Joachim Petrus van Dyk (1874- ) |
| Joshua William Thackwray (1862-1920)
|
| Susanna Catharina Josephine van Dyk (1872- )
|
| Elizabeth Mary Thackwray (1888- ) |
| Joseph John van Dyk (1903-1979) |
