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Male  Gerorge Conrad Theodor Koch
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Female  Maria van der Plaat
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1871--
1872--
1876--
1880--
1884--
1888--
1892--
1896--
1900--
1904--
1908--
1912--
Birth -- about 1876 50 Den Helder, Noord-Holland, Nederland
Birth -- about 1877 42 40 Den Helder, Noord-Holland, Nederland
Civil Marriage -- 6 February 1907 ‎(Husband's age 31,‎ Wife's age 30) Den Helder, Noord-Holland, Nederland Gerorge Conrad Theodor Koch + Maria van der Plaat