| Name | Role | Place | Source | |
|---|---|---|---|---|
| Bertus Datema | Child | 1884 | Sauwerd | Civil registration births |
| Bertus Datema | Father of groom | 1943 | Groningen | Civil registration marriages |
| Bertus Datema | Decorated | 's-Gravenhage | Registration honors | |
| Bertus Datema | Father | 1916 | Groningen | Civil registration births |
| Bertus Datema | Relation | 1957 | Groningen | Civil registration deaths |
| Bertus Datema | Father | 1911 | Groningen | Civil registration births |
| Bertus Datema | Father | 1913 | Groningen | Civil registration births |
| Bertus Datema | Father of bride | 1939 | Groningen | Civil registration marriages |
| Bertus Datema | Groom | 1909 | Baflo | Civil registration marriages |
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