| Name | Role | Place | Source | |
|---|---|---|---|---|
| Cornelius Simons de Groot | Father | 1839 | Oude Pekela | Civil registration births |
| Cornelius Simons de Groot | Father of bride | 1866 | Oude Pekela | Civil registration marriages |
| Cornelius Simons de Groot | Father | 1835 | Oude Pekela | Civil registration births |
| Cornelius Simons de Groot | Father | 1859 | Oude Pekela | Civil registration deaths |
| Cornelius Simons de Groot | Father | 1844 | Oude Pekela | Civil registration births |
| Cornelius Simons de Groot | Father | 1872 | Oude Pekela | Civil registration deaths |
| Cornelius Simons de Groot | Father | 1844 | Oude Pekela | Civil registration deaths |
| Cornelius Simons de Groot | Father of groom | 1859 | Oude Pekela | Civil registration marriages |
| Cornelius Simons de Groot | Father | 1842 | Oude Pekela | Civil registration births |
| Cornelius Simons de Groot | Father | 1920 | Oude Pekela | Civil registration deaths |
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