Name | Role | Place | Source | |
---|---|---|---|---|
Adam Petrus de Groot | Registered | 1912 | Amsterdam | Pension registry |
Petrus Theodorus Cornelius de Groot | Registered | 1897 | Amsterdam | Pension registry |
Simon Petrus Cornelis de Groot | Registered | 1903 | Amsterdam | Pension registry |
Wilhelmus Petrus de Groot | Registered | 1912 | Amsterdam | Pension registry |
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