4 Generation Circle Diagram: |
| Helena van Berkelen Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Johannes "Jan" Schuurman < Arie Machiel Schuurman < Johannes Schuurman |
| Helena Schuurmans Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree |