4 Generation Circle Diagram: |
| Geertruij Boonstoppel Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Dirk Oskam < Johannes "Jan" Oskam |
| Dirk Oskam Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Geertruij Boonstoppel < Johannes "Jan" Oskam |
| Jannigje Bons Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Johannes "Jan" Oskam < Cornelis Oskam |
| Johannes "Jan" Oskam Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Jannigje Bons < Cornelis Oskam |
| Jannigje Dekker Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Cornelis Oskam < Jannigje Oskamp |
| Cornelis Oskam Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Jannigje Dekker < Jannigje Oskamp |
| Jannigje Oskamp Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Claas "Klaas" den Uijl < Jan de Uijl < Teunis den Uijl |