Mary Alcock, b: 1764 - Jersey County, United Kingdom

^{1867 Alaska Territory purchased}
^{1869 Transcontinental Railroad complete}
^{1879 Edison invents phono/light bulb}
^{1898 Spanish-American War}
^{1903 Wright brothers 1st plane flight}

^{1803 Louisiana Territory Purchased}
^{1805 Lewis and Clark reach Pacific}
^{1812 - 1814 War of 1812 with Britain}
^{1846 War w/Mexico,Calif & NM acquired}
^{1861 - 1865 Civil War, North vs. South}

^{1754 - 1763 Anglo-French War}
^{1773 Boston Tea Party tax rebellion}
^{1775 - 1783 Revolutionary War}
^{1776 Declaration of Independence}
^{1789 George Washington first president}


	^Robert Barr^{b.1785 New Castle, Delaware d.1824 Gibson, Pennsylvania}

	^Mary Barr^{b.1787 New Castle, Delaware d.1847 Elk, Pennsylvania}

	^{Elizabeth Barr}^{b.1790 Noyes, Pennsylvania d.}		^John Barr^{b.1751 Mayo Co., Ireland d.1833 Bald Eagle, Pennsylvania}

	^John Barr^{b.1791 Noyes, Pennsylvania d.1896}

	^Anna Barr^{b.1795 Noyes, Pennsylvania d.}

	^{William Barr}^{b.1798 Cooks Run, Pennsylvania d.1886 Gibson To, Pennsylvania}

	^James Barr^{b.1802 Noyes, Pennsylvania d.1860 Gibson, Pennsylvania}		^Mary Alcock^{b.1764 Jersey C, United Kingdom d.1847 Gibson, Elk, Pennsylvania}

	^Jane Barr^{b.1805 Noyes, Pennsylvania d.1869 Palmer, Washington, Ohio}

	^Hester Barr^{b.1809 Cameron C, Pennsylvania d.}