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 | 1929 The Great Depression begins 1939 - 1945 World War II 1945 Atomic bomb detonated (Hiroshima) 1950 Korean War begins 1964 - 1973 Vietnam War
| 1898 Spanish-American War 1903 Wright brothers 1st plane flight 1908 Ford produces Model T 1913 Edison invents movies w/sound 1914 - 1918 World War I
| 1846 War w/Mexico,Calif & NM acquired 1861 - 1865 Civil War, North vs. South 1867 Alaska Territory purchased 1869 Transcontinental Railroad complete 1879 Edison invents phono/light bulb
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 |  |  | Johann Hermann Kohues b.1828 Ostbevern, Westfalen, Prussia d.1875 Cincinnati, Ohio |  |
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 |  | Louis Kohus b.1858 Cincinnati, Ohio d.1907 Cincinnati, Ohio |  | Maria Veronica Determann b.1833 Recke, Prussen d.1913 Cincinnati, Ohio |  |
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 |  | Herbert Bernard Kohus b.1886 Cincinnati, Ohio d.1969 Milford, Ohio |  |  | John Elbrey b.1827 Hanover, Germany d.1880 |  |
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 |  |  | Julia E. Elbrey b.1860 Cincinnati, Ohio d.1945 Atlanta, Georgia |  | Mary A. Unknown b.1831 Ohio d.1860 |  |
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 | Herbert Bernard Kohus b.1917 Cincinnati, Ohio d.2009 Mt. Repose, Ohio |  |  |  | David Duncan b.1822 Indiana d.1880 |  |
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 |  |  | Orson "Oscar" D. Duncan b.1865 Madison, Indiana d.1958 Milford, Ohio |  | Susan Dunham b.1835 Clerm, Batavia Township Ohio d.1924 Cincinnati, Ohio |  |
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 |  | Mabel Julia Duncan b.1890 Madisonville, Ohio d.1970 Mt. Repose, Ohio |  |  | Isaac J. Walters b.1837 Milford, Ohio d.1904 Cincinnati, Ohio |  |
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 |  | Anna Elisabeth Walters b.1869 Ohio d.1956 Cincinnati, Ohio |  | Anna Christina Elisabeth Gordon b.1845 Wapakaneta, Ohio d.1924 Cincinnati, Ohio |  |
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