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Pennsylvania Counties

Butler County

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Butler County was named for Irish born General Richard Butler (1743-1791), a Revolutionary War soldier. Butler County, Kentucky, was also named after him. The county was created from part of Allegheny County on March 12, 1800. It was still attached to Allegheny County until 1803. Butler, the county seat, was created in 1803, incorporated on February 26, 1817, and chartered as a city on January 7, 1918.

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Looking to further your research in Butler County? Try these book titles below.
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Butler County, Pennsylvania Celebrates Its Bicentennial

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Did you know?
Seventy-five percent of the world's oil was drilled in Butler County during the mid-1800s!

Other Useful Butler Co. Links

  • Harrisville History (1895)

  • Jackson Township History (1895)

  • Jefferson Township History (1895)

  • Karns City History

  • Lancaster Township History (1895)

  • Map of Butler Co. (modern)

  • Marion Township History (1895)

  • Mercer Township History (1895)

  • Middlesex Township History (1895)

  • Millerstown History (1895)

  • Municipalities Incorporation Dates
     (PDF - requires Acrobat Reader)

  • Muddy Creek Township History (1895)

  • Nat. Register Historic Places, Butler Co.

  • Oakland Township History (1895)

  • Old Photos

  • Old Stone House

  • Parker Township History (1895)

  • Penn Township History (1895)

  • Petrolia Borough History (1895)

  • Portersville History (1895)

  • Prospect Borough History (1895)

  • Saxonburg Borough History (1895)

  • Slippery Rock Township History (1895)

  • Slippery Rock University Library

  • Summit Township History (1895)

  • Venango Township History (1895)

  • Washington Township History (1895)

  • West Sunbury History (1895)

  • Winfield Township History (1895)

  • Worth Township History (1895)

  • Zelienople Historical Society

  • Zelienople Borough History

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