1909 - 1990 (80 years)
| Jasper Daniël van Dyk 1940-2020 |
| Jasper Daniël van Dyk | |
| B: | 29 Oct 1940 |
| D: | Oct 2020 |
| Pieter Hermanus Steyn van Dyk 1946-2007 |
| Pieter Hermanus Steyn van Dyk | |
| B: | 7 Aug 1946 |
| D: | 31 Aug 2007 |
|
| Frans Stefanus van Dyk 1909-1990 |
| Frans Stefanus van Dyk | |
| B: | 10 Aug 1909 |
| D: | 5 Jun 1990 |
 | Aletta Johanna Steyn 1918-Yes, date unknown |
| Aletta Johanna Steyn | |
| B: | 16 Jan 1918 |
| M: | 20 Apr 1936 |
| D: | Yes, date unknown |
