Isaac Monroe Lahr, b: 1874 - Klingerstown, Pa

^{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}


			^Jacob Lahr^b.1824 d.

		^{Josiah S. Lahr}^{b.1845 d.1900 Klingerstown, DC, Pa}	^{Susanna Shaffer}^{b.1824 Upper Mahanoy Twp. Nor d.1899 Jackson Twp., Pa}

^{Raymond Irvin Lahr}^{b.1904 Enhaut, Dauphin Co. Pa d.1971 Hernd, Northumberland Pa}	^{Isaac Monroe Lahr}^{b.1874 Klingerstown, Pa d.1954 Elizabethville, Pa}		^{Peter S. Rebuck}^{b.1818 Wash, Northumberland Pa d.1858 J, Northumberland Co. Pa}

^{Paul F. Lahr}^{b.1910 Enhaut, Dauphin Co. Pa d.1971 Hernd, Northumberland Pa}		^{Henrietta Rebuck}^{b.1849 Upper Mahanoy Twp. Nor d.1929 Hebe, Northumberland Pa}	^{Maria Polly Wiest}^{b.1818 Upper Mahanoy Twp. Nor d.1888 Upper Mahanoy Twp. Nor}

^Lahr^{b. d.}

^Lahr^{b. d.}

^{Ward Leroy Lahr}^{b.1901 Enhaut, Dauphin Co. Pa d.1901 Enhaut, Dauphin Co. Pa}	^{Mayme J. Killheffer}^{b.1880 Hernd, Northumberland Pa d.1962 Elizabethville, Pa}

^{Josiah Oliver Lahr}^{b.1902 Enhaut, Dauphin Co. Pa d.1962 Pa.}