1931 - 2005 (74 years)
 | Jacobus van Dyk 1956-Yes, date unknown |
| Jacobus van Dyk | |
| B: | CA 1956 |
| D: | Yes, date unknown |
| Hermanus Johannes van Dyk 1959-1977 |
| Hermanus Johannes van Dyk | |
| B: | 9 Nov 1959 |
| Riversdal, Kaap, Suid-Afrika | |
| D: | 25 Sep 1977 |
| Kroonstad, Vrystaat, Suid-Afrika | |
| Anna Maria Greeff 1931-2005 |
| Anna Maria Greeff | |
| B: | 8 Jul 1931 |
| D: | 28 Aug 2005 |
| Kuilsrivier, Kaap, Suid-Afrika | |
| George Frederick van Dyk 1934-2017 |
| George Frederick van Dyk | |
| B: | 3 Oct 1934 |
| D: | Apr 2017 |
