4 Generation Circle Diagram: |
| Gerardina Spijkers Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Petrus van de Beer < Johanna Cornelia van de Beer |
| Petrus van de Beer Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Gerardina Spijkers < Johanna Cornelia van de Beer |
| Johanna Cornelia van de Beer Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Adriaen van de Winkel < Petronella "Nel" van de Winkel |