4 Generation Circle Diagram: |
| Gerrigje Geerts "Gerrechien" Schuitema Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Joannes Hermannus "Johan" Walstra < Gerardus Walstra |
| Joannes Hermannus "Johan" Walstra Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Gerrigje Geerts "Gerrechien" Schuitema < Gerardus Walstra |