4 Generation Circle Diagram: |
| Willemke Reyers van Lopick Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Hendrik Oskamp < Buchardus Oskam |
| Hendrik Oskamp Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Willemke Reyers van Lopick < Buchardus Oskam |
| Leentje Lekkerkerker Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Buchardus Oskam < Jan Oskam |
| Buchardus Oskam Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Leentje Lekkerkerker < Jan Oskam |
| Marijtje Ruigewaer Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Jan Oskam < Dirk Oskam |
| Jan Oskam Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Marijtje Ruigewaer < Dirk Oskam |
| Dirk Oskam Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Geertruij Boonstoppel < Johannes "Jan" Oskam |