4 Generation Circle Diagram: |
| Adriana Pieterse Barth Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Willem Schippers < Willempje Sara Schippers |
| Willem Schippers Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Adriana Pieterse Barth < Willempje Sara Schippers |
| Willempje Sara Schippers Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Johannis van der Plaat |