1903 - 1991 (87 years)
 | Marthinus Jacobus van Dyk 1928-1989 |
| Marthinus Jacobus van Dyk | |
| B: | 9 May 1928 |
| D: | 10 May 1989 |
| Oos-Londen, Oos-Kaap, Suid-Afrika | |
| Susanna Hendrika Mitchell 1903-1991 |
| Susanna Hendrika Mitchell | |
| B: | 22 Dec 1903 |
| D: | 16 Nov 1991 |
| Pretoria, Transvaal, Suid-Afrika | |
| Sarel Pretorius van Dyk 1897-1936 |
| Sarel Pretorius van Dyk | |
| B: | CALC 11 Dec 1897 |
| Johannesburg, Transvaal, Suid-Afrika | |
| M: | Bef 1984 |
| Piet Retief, Transvaal, Suid-Afrika | |
| D: | 11 Jun 1936 |
| Florida, Transvaal, Suid-Afrika | |
