Est 1865 - Yes, date unknown
| Johanna Maria Cobelens | |
| B: | 17 Aug 1902 |
| Amsterdam, Noord-Holland, Netherlands | |
| D: | 30 Apr 1984 |
| Johannesburg, Transvaal, Suid-Afrika | |
| Simon van Dyk | |
| B: | 25 Mar 1898 |
| Amersfoort, Utrecht, Nederland | |
| M: | 22 Nov 1923 |
| Amsterdam, Noord-Holland, Netherlands | |
| D: | 18 May 1986 |
| Johannesburg, Transvaal, Suid-Afrika | |
| Maria Elisabeth Vrees | |
| B: | Est 1865 |
| Nederland | |
| D: | Yes, date unknown |
| Johannes Cobelens | |
| B: | Est 1862 |
| Amsterdam, Noord-Holland, Netherlands | |
| D: | Yes, date unknown |
