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Male  Gerorge Conrad Theodor Koch
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Female  Agatha Quak
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Male  Gerorge Conrad Theodor Koch
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1821--
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Birth -- about 1826 Rendsburg, Schleswig-Holstein, Deutschland
Civil Marriage -- 13 January 1853 ‎(Age 27)‎ Den Helder, Noord-Holland, Nederland Gerorge Conrad Theodor Koch + Agatha Quak
Birth -- about 1876 50 Den Helder, Noord-Holland, Nederland
Civil Marriage -- 6 February 1907 ‎(Age 31)‎ Den Helder, Noord-Holland, Nederland Maria van der Plaat