4 Generation Circle Diagram: |
| Maria de Wetere Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Henricus van Gerwen < Willem van Gerven |
| Henricus van Gerwen Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Maria de Wetere < Willem van Gerven |
| Willem van Gerven Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Elisabeth de Greef < Johanna Arnoldina Willem van Gerven |