4 Generation Circle Diagram: |
| Johanna Adriana "Antje" Heijdra Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Sebastianus Berk < Theodorus Berk |
| Sebastianus Berk Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Johanna Adriana "Antje" Heijdra < Theodorus Berk |
| Theodorus Berk Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Maria Rodenburg |