1917 - 1987 (70 years)
| Sybrand van Dyk | |
| B: | 25 Jul 1960 |
| D: | 3 Jan 1961 |
| Bloemfontein, Vrystaat, Suid-Afrika | |
| Jacob Christoffel Johannes van Dyk | |
| B: | 12 May 1938 |
| D: | Yes, date unknown |
| Catharina Elizabeth van Dyk | |
| B: | 28 May 1942 |
| Trompsburg, Vrystaat, Suid-Afrika | |
| D: | CA 1973 |
| Bloemfontein, Vrystaat, Suid-Afrika | |
|
| Sybrand van Dyk | |
| B: | 31 Jan 1917 |
| Transvaal, Suid-Afrika | |
| D: | 23 May 1987 |
| Vaalwater, Transvaal, Suid-Afrika | |
| Elizabeth Magrietha van der Merwe | |
| B: | CA 1922 |
| Trompsburg, Vrystaat, Suid-Afrika | |
| M: | 2 Jul 1938 |
| Trompsburg, Vrystaat, Suid-Afrika | |
| D: | Yes, date unknown |
| Cornelius Johannes van Dyk | |
| B: | 15 Sep 1951 |
| D: | 21 Jun 2020 |
| Jacobus Gerhardus Johannes van Dyk | |
| B: | 26 Jun 1964 |
| D: | Yes, date unknown |
| Susanna Isabella Heymans | |
| B: | 16 Aug 1924 |
| Vrystaat, Suid-Afrika | |
| M: | 12 Jul 1947 |
| Petrus Steyn, Vrystaat, Suid-Afrika | |
| D: | 14 Dec 1983 |
| Fochville, Transvaal, Suid-Afrika | |
