Time Voyagers
Pennsylvania Counties
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Mercer CountyMercer County was named for General Hugh Mercer and created on March 12, 1800, from part of Allegheny County. It was formally organized in February 1804 when it was detached from Crawford County. The county seat is Mercer, laid out in 1803, and incorporated as a borough on March 28, 1814. |
 Looking to further your research in Pennsylvania?Click here for: Book titles listed for Mercer County. Or visit the Pennsylvania Page of Time Voyagers Bookstore You'll find books organized by county or general Pennsylvania subjects, as well as titles for other states, ethnic origins or countries. Don't forget to check on the parent county of this county. Or, check out the entireTIME VOYAGERS BOOKSTORE for general titles in genealogy, history, or general best sellers. |
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Pennsylvania List of Counties