| Circle Diagram: | 
| Pieter Harms Koopman Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Pietje Roelfs Rozema < Hillechien Pieters Koopman < Harmina Koopman < Roelfke Koopman | 
| Martha Jacoba Grenzenberg Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Hindrik Luurs < Harm Luurs < Jacob Luurs < Theodora Luurs | 
| Grietje van der Lei Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Harm Luurs < Douwe Luurs | 
| Harm Luurs Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Grietje van der Lei < Douwe Luurs Sibling Jacob Luurs Theodora Luurs | 
| Douwe Luurs Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart | 


























