| Circle Diagram: | 
| Christina Schuur Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Gosen Kolk < Rijpko Kolk < Grietje Kolk < Harmannus Kolk | 
| Grietje Kolk Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Hendrik Jacobus de Boer Sibling Rijpko Kolk Harmannus Kolk | 

 
	

























