4 Generation Circle Diagram: |
| Johanna Maria van Gerwen Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Wilhelmus van Vlerken < Lambertus van Vlerken |
| Wilhelmus van Vlerken Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Johanna Maria van Gerwen < Lambertus van Vlerken |
| Lambertus van Vlerken Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Hendrica Johanna van Helvoirt |