The Pennsylvania railroad : its origin, construction, condition, and connections ; embracing historical, descriptive, and statistical notices of cities, towns, villages, stations, industries, and objects of interest on its various lines in Pennsylvania and New Jersey

Along Pennsylvania's Lincoln Highway

Times of sorrow & hope : documenting everyday life in Pennsylvania during the Depression and World War II : a photographic record

Heart of the Pennsylvania Railroad : the main line, Philadelphia to Pittsburgh

Pennsylvania Train Stations: Restored And Revitalized

Short-line steam in Pennsylvania

Central Railroad of Pennsylvania

The Seventh Pennsylvania veteran volunteer cavalry; its record, reminiscences and roster; with an appendix

The railroad that never was: Vanderbilt, Morgan and the Southern Pennsylvania Railroad

The alley popper : a history of the Pittsburgh & Susquehanna and its predecessor companies

Conquering Gotham : a Gilded Age epic : the construction of Penn Station and its tunnels

Broad Street Station, Pennsylvania Railroad, Philadelphia, 1881-1952

Hopewell Village; a social and economic history of an iron-making community

The railway and locomotive historical society Bulletin No. 117

Pennsylvania by rail--I

Lewistown and the Pennsylvania Railroad : from moccasins to steel wheels : a collection of essays

Curtin Village And Eagle Iron Works : What Was And What Is

Profiles of Pennsylvania : [history, statistics, demographics for all 3,385 populated places in Pennsylvania including comparative statistics & rankings]

Underground railroad in Pennsylvania

A guide book of art, architecture, and historic interests in Pennsylvania

Voices of the Pennsylvania Railroad

"Stemwinders" in the Laurel Highlands; the logging railroads of South-western Pennsylvania

Railroad Museum of Pennsylvania : Pennsylvania trail of history guide

Teddy Collins empire : a century of lumbering in Forest County; Nebraska, Golinza, Kellettville, Mayburg, Bucks Mills, Iron City, Pigeon, Marienville

Centennial history of the Pennsylvania Railroad Company, 1846-1946

Dinkies, dams, and sawdust : the logging railroads of West Central Pennsylvania : DuBois, Clearfield, Brookville, Brockway, Penfield, Ebensburg, Punxsutawney

The autobiography of a Pennsylvanian

The plenty of Pennsylvania : samples of seven cultures persisting from colonial days

Pennsylvania beautiful

Life and times of Andrew Gregg Curtin

Pennsylvania : a guide to the Keystone state

Seeing Pennsylvania

Pennsylvania; a regional geography

A traveler's guide to historic western Pennsylvania

Our Pennsylvania : keys to the keystone state

Eldorado found : the central Pennsylvania highlands : a tourist's survey

Sawmills among the derricks: Kane, Kinzua Valley, Bradford, Crosby, Lewis Run

Ghost lumber towns of central Pennsylvania; Laquin, Masten, Ricketts, Grays Run

Tanbark, alcohol, and lumber; the forest industries of St. Marys, Hallton, Wilcox, Portland Mills, Straight, Johnsonburg

Whining saws and squealing flanges; Cross Fork, Emporium, Austin, Hicks Run, Galeton

Sunset along Susquehanna waters: Williamsport, Leetonia, Slate Run, Cammal, Glen Union, Gleasonton