1794 - Yes, date unknown
| Jacobus Hercules du Preez | |
| B: | CA 1835 |
| D: | Yes, date unknown |
| Margaretha Maria Magdalena du Preez | |
| B: | CA 1836 |
| D: | Yes, date unknown |
| Sybrand Johannes du Preez | |
| B: | CA 1838 |
| D: | Yes, date unknown |
| Susara Catharina Maria du Preez | |
| B: | CA 1840 |
| D: | Yes, date unknown |
| Lukas Johannes du Preez | |
| B: | CA 1842 |
| D: | Yes, date unknown |
| Barend Jacobus du Preez | |
| B: | CA 1844 |
| D: | Yes, date unknown |
| Katharina Maria du Preez | |
| B: | 21 Mar 1846 |
| D: | Yes, date unknown |
| Hendrik Johannes du Preez | |
| B: | 2 Jul 1848 |
| D: | Yes, date unknown |
| Jacobus Hercules du Preez | |
| B: | 9 Apr 1813 |
| George, Kaap, Suid-Afrika | |
| D: | Yes, date unknown |
| Catharina Maria van Dyk | |
| B: | 4 Oct 1818 |
| M: | 5 May 1833 |
| Cradock, Kaap, Suid-Afrika | |
| D: | Bef 1885 |
| Cornelia Johanna Hendrina Davel | |
| M: | 15 Jul 1850 |
| Winburg, Vrystaat, Suid-Afrika | |
| D: | Yes, date unknown |
| Jacobus Hercules du Preez | |
| B: | 26 Jan 1794 |
| D: | Yes, date unknown |
| Sara Catharina van der Schyff | |
| B: | CA 1795 |
| D: | Yes, date unknown |
