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 |
| Willemina "Mientje" Gieling Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Bernardus Geurts < Joannes Wilhelmus "Jan" Geerts |
| Bernardus Geurts Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Willemina "Mientje" Gieling < Joannes Wilhelmus "Jan" Geerts |
| Theodora Kaalberg Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Joannes Wilhelmus "Jan" Geerts < Gradus Geerts |
| Joannes Wilhelmus "Jan" Geerts Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Theodora Kaalberg < Gradus Geerts |
| Gradus Geerts Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Maria van Kollenburg < Maria Theresia Geerts |