Petrus Valk
| Family | Pedigree | Reports |
| Petrus Valk |
| b. abt 1857 |
| d. 26 Jun 1925 |
| Adriaan Valk |
| b. 17 Jan 1828 |
| d. 2 Sep 1914 |
| Maria Maria Langenberg |
| b. 13 Apr 1830 |
| d. 27 Nov 1859 |
| Lambertus Valk |
| b. abt 1781 |
| d. 27 Jul 1835 |
| Anna Snavel |
| b. abt 1785 |
| d. 23 Sep 1871 |
| Peter Langenberg |
| b. |
| d. |
| Johanna Ribbers |
| b. |
| d. |
| Dirk Valk |
| b. |
| d. |
| Anna van Baartwijk |
| b. |
| d. |