4 Generation Circle Diagram: |
| Christina Maria van Oers Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Jan de Gier < Johannes Cornelis de Gier |
| Jan de Gier Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Christina Maria van Oers < Johannes Cornelis de Gier |