| Name | Role | Place | Source | |
|---|---|---|---|---|
| R Hamstra | Registered | 1877 | Ginneken en Bavel | Population register |
| R. Hamstra | Signatory | 1878 | 's-Gravenhage | Verzoekschriften |
| R. Hamstra | Registered | 1895 | Amsterdam | Family cards |
| R. Hamstra | Signatory | 1878 | 's-Gravenhage | Verzoekschriften |
| R. Hamstra | Registered | 1948 | Leeuwarden | Chamber of Commerce |
| R. Hamstra | Registered | Amsterdam | Pension registry | |
| R. Hamstra | Travelers | 1921 | Rotterdam | Passenger registers |
| R. Hamstra | Travelers | 1963 | New York | Passenger registers |
| R. Hamstra | Registered | 's-Gravenhage | Personnel File |
The term R. Hamstra appears in user-added comments on documents: 1
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