| Jan Klerk |
| Jan Klerk | |
| G: | 11 apr 1891 |
| Schermerhorn, Alkmaar, Noord-Holland, Nederland | |
| Neeltje Klerk |
| Neeltje Klerk | |
| G: | 13 jun 1921 |
| Schermerhorn, Alkmaar, Noord-Holland, Nederland | |
| Jacob Klerk |
| Jacob Klerk | |
| G: | 19 apr 1894 |
| Schermerhorn, Alkmaar, Noord-Holland, Nederland | |
| O: | 29 sep 1969 |
| Heiloo, Noord-Holland, Nederland | |
| Hendrika Elisabeth Koningen |
| Hendrika Elisabeth Koningen | |
| G: | 1 nov 1897 |
| Haarlemmermeer, Noord-Holland, Nederland | |
| H: | 19 jan 1918 |
| Schermerhorn, Alkmaar, Noord-Holland, Nederland | |
| O: | 24 dec 1974 |
| Alkmaar, Noord-Holland, Nederland | |
| Cornelis Klerk |
| Cornelis Klerk | |
| G: | 22 mei 1901 |
| Schermerhorn, Alkmaar, Noord-Holland, Nederland | |
| Everdina Maria Alberta Welman |
| Everdina Maria Alberta Welman | |
| G: | ca. 1900 |
| Doesburg, Gemeente Doesburg, Gelderland, Nederland | |
| H: | 25 jun 1925 |
| Schermerhorn, Alkmaar, Noord-Holland, Nederland | |
|
| Neeltje van Doorn |
| Neeltje van Doorn | |
| G: | 27 okt 1866 |
| Purmerend, Noord-Holland, Nederland | |
| O: | 22 mrt 1935 |
| Alkmaar, Noord-Holland, Nederland | |
| Cornelis Klerk |
| Cornelis Klerk | |
| G: | 3 mei 1866 |
| Beemster, Noord-Holland, Nederland | |
| H: | 15 jan 1891 |
| Purmerend, Noord-Holland, Nederland | |
| O: | 28 jan 1949 |
| Alkmaar, Noord-Holland, Nederland | |