4 Generation Circle Diagram: |
| Pietje Gerbens Koopmans Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Gerrit Aukes Kok < Marten Kok |
| Gerrit Aukes Kok Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Pietje Gerbens Koopmans < Marten Kok |