4 Generation Circle Diagram: |
| Cornelia Verkooijen Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Petrus Adriaan "Pieter" Fens < Petrus Fens |
| Petrus Adriaan "Pieter" Fens Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Cornelia Verkooijen < Petrus Fens |
| Petrus Fens Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Johanna van Strien < Adrianus Wilhelmus Fens < Petrus "Pieter" Fens < Willem Fens |