Circle Diagram:
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| Johannes Boer
Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Maargaretha Westerhuis < Johannes Albertus Frederikus Boer < Maria Gesina Boer |
| Johannes Albertus Frederikus Boer
Pedigree Tree Descendancy Chart Ancestry Chart Compact Chart Circle Diagram Hourglass Chart Jacoba Catharina Koster Sibling Maria Gesina Boer |


























