Leah Charlotte Witmer, b: 1900 - Lower Mahanoy Township,

^{1939 - 1945 World War II}
^{1945 Atomic bomb detonated (Hiroshima)}
^{1950 Korean War begins}
^{1964 - 1973 Vietnam War}
^{1969 Armstrong first person on the moon}

^{1903 Wright brothers 1st plane flight}
^{1908 Ford produces Model T}
^{1913 Edison invents movies w/sound}
^{1914 - 1918 World War I}
^{1929 The Great Depression begins}

^{1861 - 1865 Civil War, North vs. South}
^{1867 Alaska Territory purchased}
^{1869 Transcontinental Railroad complete}
^{1879 Edison invents phono/light bulb}
^{1898 Spanish-American War}


			^{Charles Heckert}^{b.1852 Lower Mahanoy Townshi d.1929}

		^{Benjamin Franklin Heckert}^{b.1872 Upper Paxton Township, d.1950}

	^{John F. Heckert}^{b.1898 d.1936 Lower Mahanoy Townshi}

^{A. Franklin Heckert}^{b.1918 Jackson Township, d.}		^{Clara E. Yeager}^{b.1875 d.1937}

^{John Donald Heckert}^{b.1922 Jackson Township, d.1983}

^{Robert Mark Heckert}^{b.1925 Jackson Township, d.}

	^{Leah Charlotte Witmer}^{b.1900 Lower Mahanoy Townshi d.2000 Mansion Nursing Home,}