4 Generation Circle Diagram: |
| Joanna Kersten Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Gradus Thijssen < Bart Thijssen |
| Gradus Thijssen Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Joanna Kersten < Bart Thijssen |
| Bart Thijssen Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Willemina Cillisen < Gradus Thijssen |