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Floods and high water, 1936. Pennsylvania's greatest flood disaster in pictures.-
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Floods
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Great floods of Pennsylvania
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Clearfield County
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The Johnstown flood
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The Johnstown flood of 1889 : the tragedy of the Conemaugh
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The gift to be simple :life in Amish country
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1911, the Austin flood
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Wild Pennsylvania : a celebration of our state's natural beauty
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The day it rained forever : a story of the Johnstown flood
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The Amish of Lancaster County
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The history of Bucks County, Pennsylvania, from the discovery of the Delaware to the present time
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History of Delaware County, Pennsylvania, from the discovery of the territory included within its limit to the present time, with a notice of the geology of the county, and catalogues of its minerals, plants, quadrupeds, and birds, written under the direction and appointment of the Delaware County Institute of Science
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Johnstown flood : the day the dam burst
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A list of immigrants who applied for naturalization papers in the District Courts of Allegheny County, Pennsylvania
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Naturalization records, 1802-1854, Somerset County, Pennsylvania
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Venango County, Pennsylvania declarations of intention and petitions for naturalization
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Johnstown flood
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The Johnstown Flood : core events of a deadly disaster
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Naturalization records 1802-1852, Westmoreland County, 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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The Fair Play settlers of the West Branch Valley, 1769-1784: a study of frontier ethnography
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Wild & scenic Pennsylvania
