Dora May Mattis, b: 1879 -

^{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}




	^{William L. Gaugler}^{b.1879 d.1964}



^{Elva Mattis Gaugler}^{b.1908 d.1993}			^{Isaac Mattis}^{b.1814 Limerick Township, d.1898}

		^{Charles T. Mattis}^{b.1844 d.1917 Washington Township,}	^{Salome (Sallie) Trautman}^{b.1823 Jordan Township, d.1919}

	^{Dora May Mattis}^{b.1879 d.1996}

		^{Mary Jane Sheets}^{b.1860 d.1924}