4 Generation Circle Diagram: |
| Theodora Hendrica Gersen Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Willem Alexander Witmer < Willem Alexander Witmer |
| Willem Alexander Witmer Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Theodora Hendrica Gersen < Willem Alexander Witmer |
| Willem Alexander Witmer Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Maria Suzanna van der Plaat |