4 Generation Circle Diagram: |
| Jantje Verkerk Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Aard de Kock < Willemke de Kock |
| Aard de Kock Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Jantje Verkerk < Willemke de Kock |
| Willemke de Kock Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Interactive Tree Hendricus Ilmer < Frans Ilmer < Helena Ilmer < Willem Ilmer |