4 Generation Circle Diagram: |
| Ardina Johannes van Crommert Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Wilhelmus Johannes de Groot < Leonardus de Groot |
| Wilhelmus Johannes de Groot Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Ardina Johannes van Crommert < Leonardus de Groot |
| Leonardus de Groot Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Helena Snoeren < Willem de Groot |