Katherine Potthoff, b: 1897 -

^{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}




^Peter Stein^{b. d.}



		^{Theodore Potthoff}^{b.1827 Ottmarts, Germany d.1904 Halbur, Iowa}

	^{Bernard Potthoff}^{b.1871 Peoria, Illinois d.1946 Harrick, SD}	^{Catherine Kelke}^{b.1837 Hanover, Germany d.1920}

^{Katherine Potthoff}^b.1897 d.		^{John Joseph Klocke}^{b.1833 Rolfzen, Germany d.1902}

	^{Elizabeth Klocke}^{b.1872 Richland, Carol, Iowa d.1933 Gregory, SD}	^{Maria Theresia Spieker}^{b.1848 Rolfzen, Germany d.1939 Carroll, Iowa}