| 4 Generation Circle Diagram: | 
| Gerhardus van der Laan Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Jurrena Stiekema < Wilhelmus Lourentius van der Laan < Lourentius van der Laan | 
| Wilhelmus Lourentius van der Laan Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Sibling Lourentius van der Laan |