Name | Role | Place | Source | |
---|---|---|---|---|
E. Koeppen | Registered | 1895 | Amsterdam | Family cards |
Elise Koeppen | Registered | 1921 | Amsterdam | Foreigners register |
J.F. Koeppen | Military | 's-Gravenhage | Pension registry | |
Julius Theodor Koeppen | Registered | 1849 | Amsterdam | Foreigners register |
Wolfgang Arthur Reinhold Koeppen | Registered | 1913 | 's-Gravenhage | Population register |
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