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Wills and administrations of Northumberland County, Pennsylvania : including wills and administrations of Union, Mifflin and Indiana Counties, all formerly a part of Northumberland County, Pennsylvania
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A genealogist's guide to burials in Northumberland County, Pennsylvania
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History of Butler County, Pennsylvania
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A history of Delaware county, Pennsylvania
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History of Monroe County, Pennsylvania
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Jefferson county, Pennsylvania history
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History of Montgomery County, Pennsylvania
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History of Allegheny county, Pennsylvania
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History of Potter County, Pennsylvania
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The history of Erie County, Pennsylvania
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History of Greene County, Pennsylvania
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History of Cambria County, Pennsylvania
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History of Carbon County, Pennsylvania; also containing a separate account of the several boroughs and townships in the county
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Frontier rangers from Northumberland County, PA, 1778-1783
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Union County, Pennsylvania : a Bicentennial history
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Union County, Pennsylvania : a celebration of history
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Mifflin County, Pennsylvania : families and records before 1800
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History of Chester County, Pennsylvania : with genealogical and biographical sketches
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A history of Blair county, Pennsylvania
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A History of Cameron County, Pennsylvania
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History of Centre and Clinton counties, Pennsylvania
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Mifflin County, Pennsylvania : families and records before 1800 : supplement
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1886 history of Cumberland County, Pennsylvania = originally published as History of Cumberland and Adams Counties
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The history of Bucks County, Pennsylvania, from the discovery of the Delaware to the present time
