Bernard Potthoff, b: 1871 - Peoria, Illinois

^{1914 - 1918 World War I}
^{1929 The Great Depression begins}
^{1939 - 1945 World War II}
^{1945 Atomic bomb detonated (Hiroshima)}
^{1950 Korean War begins}

^{1879 Edison invents phono/light bulb}
^{1898 Spanish-American War}
^{1903 Wright brothers 1st plane flight}
^{1908 Ford produces Model T}
^{1913 Edison invents movies w/sound}

^{1812 - 1814 War of 1812 with Britain}
^{1846 War w/Mexico,Calif & NM acquired}
^{1861 - 1865 Civil War, North vs. South}
^{1867 Alaska Territory purchased}
^{1869 Transcontinental Railroad complete}


^{Anna Mary Potthoff}^{b.1906 Iowa d.1963 Rapid City, SD}

^{Katherine Potthoff}^b.1897 d.		^{Theodore Potthoff}^{b.1827 Ottmarts, Germany d.1904 Halbur, Iowa}

^{John Potthoff}^b.1898 d.	^{Bernard Potthoff}^{b.1871 Peoria, Illinois d.1946 Harrick, SD}

^{George H. Potthoff}^{b.1900 d.1950 Rapid City, SD}		^{Catherine Kelke}^{b.1837 Hanover, Germany d.1920}

^{Clara F. Potthoff}^b.1903 d.			^{Anton Klocke}^{b. d.}

^{Leo A. Potthoff}^b.1904 d.		^{John Joseph Klocke}^{b.1833 Rolfzen, Germany d.1902}

^{Rosie T. Potthoff}^b.1910 d.	^{Elizabeth Klocke}^{b.1872 Richland, Carol, Iowa d.1933 Gregory, SD}		^{Joseph Spieker}^{b.1819 Rolfzen, Germany d.}

^{Marie V. Potthoff}^{b.1913 Nebraska d.}		^{Maria Theresia Spieker}^{b.1848 Rolfzen, Germany d.1939 Carroll, Iowa}	^{Elisabeth Schrader}^{b.1819 Rolfzen, Germany d.}