4 Generation Circle Diagram: |
| Antonie Swaerts Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Maria Catharina (Family name unknown) < Maria Elisabeth "Ria" Swaerts |
| Engelina (Family name unknown) Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Gerbrand Halsema < Gerrit "Gerrit" Halsema |
| Gerbrand Halsema Pedigree Tree Pedigree Map Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Engelina (Family name unknown) < Gerrit "Gerrit" Halsema |