1880 - Ja, datum onbekend
| Nicolaas Cornelis Deetlefs | |
| *: | 27 Aug 1902 |
| Alexandria (Olifantshoek), Oos-Kaap, Suid-Afrika | |
| †: | 27 Feb 1975 |
| Pretoria, Transvaal, Suid-Afrika | |
| Anna Margaretha van Dyk | |
| *: | 22 Apr 1905 |
| x: | 2 Aug 1926 |
| †: | 26 Jun 1987 |
| Amanzimtoti, Natal, Suid-Afrika | |
| Nicolaas Johannes Deetlefs | |
| *: | CA 1870–1880 |
| †: | Ja, datum onbekend |
| Martha Maria Deetlefs | |
| *: | CA 1870–1882 |
| †: | Ja, datum onbekend |
