1911 - 1993 (82 years)
| Christoffel Johannes Frederik van Dyk 1936-1994 |
| Christoffel Johannes Frederik van Dyk | |
| B: | 4 Sep 1936 |
| D: | 12 Jan 1994 |
| Vredendal, Kaap, Suid-Afrika | |
| Gideon Erasmus van Dyk 1944-2019 |
| Gideon Erasmus van Dyk | |
| B: | 5 Sep 1944 |
| D: | 1 Oct 2019 |
| Kaap, Suid-Afrika | |
|
| Hugo Amos van Dyk 1911-1993 |
| Hugo Amos van Dyk | |
| B: | 29 Jun 1911 |
| Namakwaland, Kaap, Suid-Afrika | |
| D: | 9 Sep 1993 |
| Vanrhynsdorp (Troe-Troe), Kaap, Suid-Afrika | |
 | Maria Jacoba Alida Visser 1915-2007 |
| Maria Jacoba Alida Visser | |
| B: | 18 May 1915 |
| Bitterfontein, Kaap, Suid-Afrika | |
| M: | 10 Sep 1934 |
| D: | 13 Jun 2007 |
| Vredendal, Kaap, Suid-Afrika | |
