4 Generation Circle Diagram: |
| Willemke Reyers van Lopick Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Hendrik Oskamp < Buchardus Oskam |
| Hendrik Oskamp Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Willemke Reyers van Lopick < Buchardus Oskam |
| Buchardus Oskam Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Leentje Lekkerkerker < Jan Oskam |