4 Generation Circle Diagram: |
| Marij Buma Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Theodorus Ykema < Yke Ykema |
| Theodorus Ykema Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Marij Buma < Yke Ykema |
| Yke Ykema Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Geertje Bangma < Trijntje Ykema |