4 Generation Circle Diagram: |
| Geertruij Wassenburg Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Pieter Kettenis < Helena Kettenis |
| Pieter Kettenis Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Geertruij Wassenburg < Helena Kettenis |
| Helena Kettenis Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Willem Wallaart < Cors Willem "Cors" Wallaart |