Mary Elizabeth Gray, b: 1855 - Grayson County, Texas

^{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}



		^{Benjamin Franklin Heyser}^{b.1817 Virginia d.1870 Bunnievilla, Kentucky}

	^{William Henry Heyser}^{b.1853 Jefferson Co., Kentucky d.1933 Brownwood, Texas}

		^{Judith Theadocia "Docia" Board}^{b.1825 Virginia d.1900 Callahan Co., Texas}

^{William Henry Heyser}^{b.1888 Abilene, Texas d.1969 Abilene, Texas}



	^{Mary Elizabeth Gray}^{b.1855 Grayson Co., Texas d.}