Johannes Gerardus Treffers
| Family | Pedigree | Reports |
| Johannes Gerardus Treffers |
| b. 22 Feb 1923 |
| d. |
| Willem Treffers |
| b. 21 Apr 1895 |
| d. |
| Catharina Johanna Kommers |
| b. 6 Aug 1900 |
| d. |
| Anna Braspenning |
| b. |
| d. |
| Joost Kommers |
| b. 22 Aug 1874 |
| d. |
| Metta Alberdina Faro |
| b. 16 Aug 1877 |
| d. 5 Feb 1956 |
| Johannes Kommers |
| b. 15 Jun 1848 |
| d. 26 Nov 1923 |
| Catharina Molegraaf |
| b. 16 Dec 1846 |
| d. 11 Oct 1914 |
| Adrianus Faro |
| b. 10 Aug 1853 |
| d. 11 Feb 1916 |
| Hendrika Verbunt |
| b. 2 Jun 1848 |
| d. 8 Oct 1931 |
