1862 - Yes, date unknown
| Harry Campbell Plumstead 1916-1983 |
| Harry Campbell Plumstead | |
| B: | 18 Jun 1916 |
| Marandelas, Rhodesia | |
| D: | 6 Jan 1983 |
| Somerset Oos, Kaap, Suid-Afrika | |
 | Catherina Johanna van Dyk 1924-2010 |
| Catherina Johanna van Dyk | |
| B: | 6 Nov 1924 |
| Robertson, Kaap, Suid-Afrika | |
| M: | 12 Jan 1948 |
| Observatory, Kaap, Suid-Afrika | |
| D: | 3 Sep 2010 |
| Arthur William Henry Plumstead 1862-Yes, date unknown |
| Arthur William Henry Plumstead | |
| B: | 21 Aug 1862 |
| Ballarat, Victoria, Australian Colonies | |
| D: | Yes, date unknown |
