- Yes, date unknown
| Nelson van Dyk | |
| B: | 19 Apr 1939 |
| Swartberg, Kaap, Suid-Afrika | |
| D: | 3 Apr 2012 |
| Harrismith, Vrystaat, Suid-Afrika | |
| Frederika Elizabetha de Klerk | |
| D: | Yes, date unknown |
| Gert Willem du Plooy | |
| B: | 5 Jan 1913 |
| Hobhouse, Vrystaat, Suid-Afrika | |
| M: | Thaba Nchu, Vrystaat, South Africa |
| D: | 8 Nov 1974 |
| Sasolburg, Vrystaat, Suid-Afrika | |
