4 Generation Circle Diagram: |
| Marijtje Bijlsma Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Klaas Boukes Houtman < Bouke Houtman < Trijntje Klaasse Houtman |
| Klaas Boukes Houtman Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Marijtje Bijlsma < Bouke Houtman < Trijntje Klaasse Houtman |
| Trijntje Klaasse Houtman Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Stelling Pieter van Oort < Dirkje van Oort Sibling Bouke Houtman |