4 Generation Circle Diagram: |
| Wilhelmina Boeijens Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Petrus "Johannes" van Erp < Ida van Erp < Maria van Erp |
| Maria van Erp Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Willebrordus van de Mosselaar Sibling Ida van Erp |