4 Generation Circle Diagram: |
| Pieter Harms Koopman
Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Pietje Roelfs Rozema < Hillechien Pieters Koopman < Harmina Koopman < Roelfke Koopman |
| Hendrikje Pieters
Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Klaas Groenhuis < Freerk Pieter Groenhuis |
| Freerk Pieter Groenhuis
Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart |