4 Generation Circle Diagram: |
| Maria Oijens Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Theodorus van Zwol < Helena Dijmphna van Zwol |
| Theodorus van Zwol Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Maria Oijens < Helena Dijmphna van Zwol |
| Helena Dijmphna van Zwol Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Dingeman van Opstal < Antonie van Opstal |