4 Generation Circle Diagram: |
| Elisabeth Swinkels Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Peter van Erp < Maria van Erp Peter van Erp < Maria van Erp |
| Maria van Erp Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Mathijs Zweegers < Josina "Petronella" Zweegers < Johannes "Petrus" Zweegers |