| Name | Role | Place | Source | |
|---|---|---|---|---|
| Jan Pieter Tjadens | Child | 1915 | Stadskanaal | Civil registration births |
| Jan Pieter Tjadens | Groom | 1945 | Groningen | Civil registration marriages |
| Jan Tjadens | Bruids zijde | 1754 | Gerecht van Garmerwolde | Registrations before 1811 |
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