4 Generation Circle Diagram: |
| Maggeltje de Boom Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Jan Hardam < Cornelis Hardam < Jan Teunis Hardam |
| Jan Hardam Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Maggeltje de Boom < Cornelis Hardam < Jan Teunis Hardam |
| Jan Teunis Hardam Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Maria Bouman Sibling Cornelis Hardam |