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Floods and high water, 1936. Pennsylvania's greatest flood disaster in pictures.-
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Centennial history of the Pennsylvania Railroad Company, 1846-1946
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1911, the Austin flood
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History of the Pennsylvania Railroad Company : with plan of organization, portraits of officials and biographical sketches
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Flood : [a history of the 1936 flood of the West Branch Valley]
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The history of the Baltimore & Ohio ; America's first railroad
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The Horseshoe Curve : sabotage and subversion in the railroad city
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Great floods of Pennsylvania
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Great floods of Pennsylvania : a two-century history
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Great floods of Pennsylvania : a two-century history
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"Wild catting" on the mountain; the William Whitmer & Sons Company and the Whitmer-Steele Company operations in Cambria, Centre, Clearfield and Union counties, Pennsylvania and Cornwall, Rockbridge county, Virginia
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Electric traction on the Pennsylvania Railroad, 1895-1968
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Johnstown flood : the day the dam burst
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Heart of the Pennsylvania Railroad : the main line, Philadelphia to Pittsburgh
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The Johnstown Flood : core events of a deadly disaster
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The Johnstown flood of 1889 : the tragedy of the Conemaugh
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Pennsylvania Railroad
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The Johnstown flood
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The Johnstown flood the incredible story behind one of the most devastating disasters America has ever known
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The Johnstown flood the incredible story behind one of the most devastating disasters America has ever known
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The history of the Pennsylvania Railroad
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Johnstown flood
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Flood 1972 : A review of the June disaster
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Nothing like it in the world :the men who built the transcontinental railroad, 1863-1869
