4 Generation Circle Diagram: |
| Akke de Jong Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Hendrik Ferwerda < Aaltje Ferwerda |
| Hendrik Ferwerda Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Akke de Jong < Aaltje Ferwerda |
| Aaltje Ferwerda Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Pieter Bruinsma < Klaas Bruinsma |