4 Generation Circle Diagram: |
| Willemijntje Warmerdam Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Jan Roozenburg < Cornelia Vermeer Warmerdam |
| Jacobus de Groot Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Maria "Marijtje" van Berkel < Johannes de Groot |
| Alida van Berkelen Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree NN (Family name unknown) < Helena van Berkelen |
| NN (Family name unknown) Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Alida van Berkelen < Helena van Berkelen |
| 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 |