1843 - Yes, date unknown
| Willem Nicolaas van der Merwe 1930-1987 |
| Willem Nicolaas van der Merwe | |
| B: | 13 Aug 1930 |
| D: | 21 Nov 1987 |
| Dr. Johannes van der Merwe 1891-1956 |
| Dr. Johannes van der Merwe | |
| B: | 1891 |
| D: | 18 May 1956 |
 | Maria Elizabeth van Dyk 1895-1964 |
| Maria Elizabeth van Dyk | |
| B: | 27 Apr 1895 |
| Stanford, Kaap, Suid-Afrika | |
| M: | 29 Jun 1929 |
| Stanford, Kaap, Suid-Afrika | |
| D: | 16 Mar 1964 |
| Pretoria, Transvaal, Suid-Afrika | |
| Willem Nicolaas Joachim van der Merwe 1843-Yes, date unknown |
| Willem Nicolaas Joachim van der Merwe | |
| B: | 24 Nov 1843 |
| D: | Yes, date unknown |
| Margaretha Johanna van Zyl 1843-1893 |
| Margaretha Johanna van Zyl | |
| B: | Oct 1843 |
| Langfontein, Clanwilliam, Kaap, Suid-Afrika | |
| D: | 9 Jun 1893 |
| Langfontein, Clanwilliam, Kaap, Suid-Afrika | |
