Nom | Rôle | Lieu | Source | |
---|---|---|---|---|
Gerardus Adrianus Koch | Inscrit | 1840 | Amsterdam | Overgenomen delen |
Jacob Gerardus Koch | Inscrit | 1838 | Amsterdam | Overgenomen delen |
Johannes Gerardus Koch | Inscrit | 1884 | Amsterdam | Overgenomen delen |
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