4 Generation Circle Diagram: |
| Joanna (Family name unknown) Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Joannis "Jan" Kaalberg < Theodora Kaalberg |
| Joannis "Jan" Kaalberg Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Joanna (Family name unknown) < Theodora Kaalberg |
| Theodora Kaalberg Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Joannes Wilhelmus "Jan" Geerts < Gradus Geerts |