Jan Vlak
| Family | Pedigree | Reports |
| Jan Vlak |
| b. |
| d. 17 Feb 1860 |
| Jan Vlak |
| b. |
| d. 28 Aug 1842 |
| Wolmoed Sier |
| b. |
| d. 7 Oct 1838 |
| Tames Vlak |
| b. |
| d. 7 Mar 1820 |
| Trijntje Koster |
| b. |
| d. |
| Family | Pedigree | Reports |
| Jan Vlak |
| b. |
| d. 17 Feb 1860 |
| Jan Vlak |
| b. |
| d. 28 Aug 1842 |
| Wolmoed Sier |
| b. |
| d. 7 Oct 1838 |
| Tames Vlak |
| b. |
| d. 7 Mar 1820 |
| Trijntje Koster |
| b. |
| d. |