Name | Role | Place | Source | |
---|---|---|---|---|
Albert Diederich Hielckert | Registered | 's-Gravenhage | Individual Files | |
Julius Alphons Michel Andries Hielckert | Registered | 's-Gravenhage | Individual Files | |
Leonard Hielckert | Registered | 's-Gravenhage | Individual Files | |
Oscar Albert Hielckert | Registered | 's-Gravenhage | Individual Files |
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