4 Generation Circle Diagram: |
| Aalberta Gijsbertha Gerardina Mallan Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree |
| Johannes Joseph Arnold Derksen Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree |
| P.J. (Peter) Derksen Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Cornelia Maria "Cor" van der Westen |