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Mercer County

Mercer County is a Pennsylvania historical marker in Mercer, Mercer County, dedicated 1983.

Mercer County · dedicated 1983 · N Diamond St. at N side of Co courthouse, at Courthouse Square, Mercer

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Formed March 12, 1800 from Allegheny County. The U.S. census reported 3228 residents in 1800. Named for General Hugh Mercer, Revolutionary hero killed at Battle of Princeton, 1777. Early iron and coal center. Mercer, the county seat, was incorporated 1814.

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David Rumsey Map Collection, Stanford Libraries

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under a mile from where William Gabby lived in the 1760s

what this marker records spans 1777 to 1789, overlapping William Gabby's years here

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Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov

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