4 Generation Circle Diagram: |
| Anke Berg
Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Adolf Robertus < Johannes Robertus < Roelf Robertus < Hendrik Robertus |
| Harmina Wilhelmina Voetman
Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Johannes Robertus < Adolf Robertus < Roelf Robertus < Adam Robertus |
| Adriana Wilhelmina Robertus
Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Berend Zuur Sibling Johannes Robertus Harmina Robertus Roel Robertus |