4 Generation Circle Diagram: |
| Annegie van Steijn Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Hendrik Pikker < Joannes Henricus Pikker |
| Hendrik Pikker Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Annegie van Steijn < Joannes Henricus Pikker |
| Joannes Henricus Pikker Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Petronilla Spronk |