+---- Willem Frederik Johannes Vetter
+---- René Willem Vetter
| +---- Jeannette Ebkedina Carolina Bergamin
==== Eline Stefanie Vetter
| +---- Nicolaas Nelis 1853-1929
| +---- Franciscus Cornelis Nelis
| | +---- Albertina Johanna van Baalen 1867-1938
| +---- Franciscus Cornelis Nelis
| | | +---- Bernardus van der Ham 1873-1961
| | +---- Johanna van der Ham
| | +---- Maria Vallinga 1870-1958
+---- Petra Clazina Maria Nelis
+---- Hendrika Petronella Maria Wennekes
|