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Male  Gerorge Conrad Theodor Koch
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1871--
1872--
1878--
1884--
1890--
1896--
1902--
1908--
1912--
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