Gerard Treffers
| Family | Pedigree | Reports |
| Gerard Treffers |
| b. 23 Sep 1949 |
| d. 6 Nov 2006 |
| Herman Treffers |
| b. 5 Jul 1920 |
| d. 30 Sep 2008 |
| Johanna Clasina Boer |
| b. 17 Dec 1922 |
| d. |
| Gerardus Wouter Treffers |
| b. 5 Apr 1883 |
| d. 13 Mar 1959 |
| Hendrika van der Schans |
| b. 27 Sep 1885 |
| d. 20 Apr 1967 |
| Gerrit Boer |
| b. 1 Oct 1883 |
| d. 25 Apr 1950 |
| Johanna van Oosterhout |
| b. 3 Mar 1887 |
| d. |
| Martinus Treffers |
| b. |
| d. |
| Hermina Ralten |
| b. |
| d. |
| Willem Boer |
| b. 24 May 1851 |
| d. 18 Nov 1910 |
| Clasina Dank |
| b. 4 Oct 1850 |
| d. 18 Nov 1922 |
| Antonie van Oosterhout |
| b. abt 1861 |
| d. |
| Johanna Rosenbrand |
| b. abt 1867 |
| d. |
