4 Generation Circle Diagram: |
| Janna (Family name unknown) Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Jannes Koelen < Willem Koelen |
| Jannes Koelen Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Janna (Family name unknown) < Willem Koelen |
| Willem Koelen Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Gesina Dijkhuis < Willem Koelen |