4 Generation Circle Diagram: |
| Geertje Bilstra Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Hendrik Johannes Kok < Tietje Kok |
| Hendrik Johannes Kok Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Geertje Bilstra < Tietje Kok |
| Tietje Kok Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Frederik Brutsman < Johanna Gezina Brutsman |