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    Erdman Gottfried Köppe 1837-1922 Wilhelmina Justine Mena Gartmann 1850-1931      
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    8
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    9
       



       
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    Franz Erdmann Frank Koeppe 1874-1954 Amanda Mathilda Schwanke 1881-1942  
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    4
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    5
     



     
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    Harold Alvin Koeppe 1901-1975 Myrtle Helen Josephine Knudson 1905-1952
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    2
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    3



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    Arle Dean Harold Koeppe