| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jan Groothuys | Registered | 1755 | Breda | Notarial records |
| Jan Groothuys | Registered | 1799 | Amsterdam | Notarial records |
| Jan Groothuys | Registered | 1794 | Landgericht | |
| Jan Groothuys | Child | 1812 | Franeker | Civil registration births |
| Jan Harman Groothuys | Registered | 1781 | Amsterdam | Notarial records |
| Jan Herman Groothuys | Registered | 1800 | Amsterdam | Notarial records |
| Jan Herman Groothuys | Registered | 1799 | Amsterdam | Notarial records |
Find your ancestors and publish your family tree on Genealogy Online via https://www.genealogieonline.nl/en/