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		Allegheny County   History by Durant, 1876   History of Allegheny County, PA, 1876
		Allegheny County   The 19th Century and Before   History of Allegheny County Pennsylvania, Part I   History of Allegheny County Pennsylvania, Part II   R. L. Polk & Co.'s Allegheny County Directory, 1897
		Allegheny Valley   Allegheny, Westmoreland, Armstrong, Clarion, Venango, Forest, Warren   Genealogical and Personal History of the Allegheny Valley, PA   The Allegheny River   The French in Allegheny Valley
		Armstrong County   The 19th Century and Before   History of Armstrong County, PA, 1883   Directory of the Butler Oil Region, containing the Principal Towns from Butler, Armstrong, Beaver, Clarion, and Jefferson counties   History of the Presbytery of Kittanning - Churches and Schools   Slate Lick: An Account of a Reunion of Present and Former Residents   Company "K" 155th PA Volunteers   History of the West Glade Run Presbyterian Church
		Beaver County   The People and Towns   Jordan's Genealogical and Personal History of Beaver County, Pennsylvania, Vol. I & II   Beaver Falls, New Brighton and Beaver Valley Directory 1892-93   Old Brighton Sketch of Settlements forming Beaver Falls, PA   Historical Events of South Side Beaver County, PA and Home Coming Week   Rochester, 1899 ( 1799-1849 )
		Bedford County   The 19th Century and Before   History of Bedford and Somerset Counties, 1906, Vol. I   History of Bedford, Somerset & Fulton Counties, PA, 1884 (Bedford Sections Only)   Directory of Bedford County Pennsylvania, 1900   The Annals of Bedford County, Pennsylvania   List of Deserters... of the 16th Congressional District of PA, 1863-64
		Bedford, Berks, Bucks & Chester Militia (Rev War)   PA Archives 5th Series, Vol V   PA Archives, 5th Series, Volume V
		Berks County   Annals By Montgomery, 1909   Annals by Montgomery, 1909 Vols. I and II
		Berks County   The 19th Century and Before   History of Berks County in Pennsylvania, 1886   Officers of Berks County ( 1752 - 1860 )   Early Narratives of Berks County
		Berks County Tax Lists   PA Archives 3rd Series, Vol XVIII   PA Archives, 3rd Series, Volume XVIII
		Bucks County Tax Lists   PA Archives 3rd Series, Vol XIII   PA Archives, 3rd Series, Volume XIII
		Butler County   The People and Towns   History of Butler County, PA   Early History of Saxonburg   Souvenir History of Slippery Rock, PA   6th Annual Catalog of the Slippery Rock State Normal School of PA, 1893-1894   18th Annual Catalog of the Slippery Rock State Normal School of PA, 1905-1906   Directory of the Butler Oil Region, containing the Principal Towns from Butler, Armstrong, Beaver, Clarion, and Jefferson counties   Early Bounty Hunters of Butler County, PA   History of the Butler Bar Association   History of Butler Presbytery   Centennial Anniversary of the First Presbyterian Church of Butler, PA   A History of the Middlesex Presbyterian Church   Official Souvernier Book 1796-1908 - Chicora, PA   Old Home Week Book - Prospect, PA
		Butler County   The early 20th Century and Before   20th Century History of Butler and Butler County, PA   American Agriculturist Farm Directory and Reference Book for Butler Co., PA   1900 Centennial Letter - To the Children of Butler Co., PA
		Chester County Tax Lists   PA Archives 3rd Series, Vol XI & XII   PA Archives, 3rd Series, Volume XI   PA Archives, 3rd Series, Volume XII
		Civil War   The Pennsylvania Reserve Corps   History of the Pennsylvania Reserve Corps   Messages of Gov. Andrew G. Curtin relative to The Reserve Corps   Address of the Organization of the PA Reserve Corps Association   Pennsylvania Reserve Volunteer Corps, "Round-up"
		Clarion County   The 19th Century and Before   History of Clarion County, PA   Directory of Clarion County, PA 1892   Commemorative Biographical Record of Central PA - Clarion County section only   Directory of the Butler Oil Region, containing the Principal Towns from Butler, Armstrong, Beaver, Clarion, and Jefferson counties
		Crawford County   The 19th Century and Before   History of Crawford County Pennsylvania, 1885   Pioneer Sketches: Scenes and Incidents of Former Days   Gazetteer and Business Directory of Crawford County, PA. for 1874
		Cumberland County   History, 1879   History of Cumberland County, 1879
		Cumberland County Militia (Rev War)   PA Archives 5th Series, Vol VI   PA Archives, 5th Series, VolumeVI
		Cumberland County Tax Lists   PA Archives 3rd Series, Vol XX   PA Archives, 3rd Series, Volume XX
		Cumberland Valley   Cumberland - Franklin   A History of the Cumberland Valley in Pennsylvania, Volume I   A History of the Cumberland Valley in Pennsylvania, Volume II   Centennial Biography, Men of Mark of Cumberland Valley, PA 1776-1876   Historical Papers, Franklin County and the Cumberland Valley Pennsylvania   Directory of the Cumberland Valley Railroad Main Line   Rural Resorts and Summer Retreat along the line of the Cumberland Valley Railroad
		Erie County   The 19th Century and Before   History of Erie County Pennsylvania, 1884   History of Erie County from its First Settlement   Erie City Business Directory for 1867-68   Gazetteer and Business Directory of Erie County PA for 1873-4
		Fayette County   The Towns   A History of Uniontown the County Seat of Fayette County PA   Centennial History of the Borough of Connellsville Pennsylvania 1806-1906   Hart's Directory and History of the Three Towns, Brownsville, Bridgeport, West Brownsville
		Frontier Forts   of Pennsylvania   The Frontier Forts of Pennsylvania, Vol I   The Frontier Forts of Pennsylvania, Vol II
		Greene County   The 19th Century and Before   History of Greene County, PA by Bates, 1888   History of Greene County, PA, by Hanna, 1882   Pioneer History of Greene County, PA   Record of the One Hundredth Anniversary of Waynesburg Lodge No. 153 Free and Accepted Masons
		Juniata Valley   History by Jordan, 1913   History of the Juniata Valley and its People Vol. I   History of the Juniata Valley and its People Vol. II   History of the Juniata Valley and its People Vol. III
		Lancaster County   Biographical Annals, 1903   Beers' Biographical Annals of Lancaster County, 1903
		Lancaster County Militia (Rev War)   PA Archives 5th Series, Vol VII   PA Archives, 5th Series, VolumeVII
		Lancaster County Tax Lists   PA Archives 3rd Series, Vol XVII   PA Archives, 3rd Series, Volume XVII
		Lawrence County   History by Durant, 1877   History of Lawrence County, PA, 1877
		Luzerne County   The 19th Century and Before   History of Luzerne County, PA, 1893   Annals of Luzerne County, PA   Centennial Chronology of Luzerne Co. and its Coal Fields   An Account of the unparalleled Disaster at the Avondale Colliery, Luzerne County, PA
		Lycoming County   History, 1876   History of Lycoming County, PA, 1876
		Mercer County   The 19th Century and Before   History of Mercer County, PA, 1888   Mercer County Directory, 1898
		Mercer County   The Early 20th Century and Before   20th Century History of Mercer County, PA; Vol. I & II   Mercer County, PA Directory, 1914-15   Sharon, PA Directory, 1891-92   Greenville, PA Directory, 1892-93   One Hundred Years of the United Presbyterian church of Greenville, PA   Honor Roll of Our Boys in U.S. Camps and Somewhere in France
		Mercer County - History, 1877   History, 1877   History of Mercer County, PA, 1877
		Monongahela Valley   Allegheny, Fayette, Greene, Washington, & Westmoreland Counties   The Monongahela of Old