4 Generation Circle Diagram: |
| Agatha Peek Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Dirk Willem van Niekerk < Willem van Niekerk |
| Dirk Willem van Niekerk Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Agatha Peek < Willem van Niekerk |
| Willem van Niekerk Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Catharina van Velzen |