4 Generation Circle Diagram: |
| Willempje de Haas Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Christiaan Oort < Willempje Oort |
| Christiaan Oort Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Willempje de Haas < Willempje Oort |
| Willempje Oort Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Jan Adriaansz. Plas < Antje Plas < Eefje Plas |