Johnstown Flood 5 Floods--Pennsylvania--Johnstown (Cambria County) 3 Disaster relief--Pennsylvania--19th century 2 Flood damage--Pennsylvania--19th century 2 Forest nurseries 2 Genealogy 2 Ironwork 2 more ... Land surveys 2 Pennsylvania--Surveys 2 Stenographers 2 Surveying 2 Advertising, Outdoor--United States--History--20th century 1 Armenian massacres, 1894-1896 1 Charitable Organizations--Philadelphia 1 Cuba--1890-1910 1 Disaster Relief--National and International 1 Disasters--Pennsylvania--19th century 1 Family life--South Carolina--19th century 1 Hate mail--Pennsylvania--19th century 1 Historians--Research Material 1 Local transit--Pennsylvania--Philadelphia 1 Local transit--Pennsylvania--Philadelphia--History--20th century 1 Natural Disasters--Floods--Wyoming Valley (PA)--20th century 1 Pennsylvania Railroad--19th century 1 Photograph albums 1 Photograph albums--1930-1950 1 Photographers--Pennsylvania--Philadelphia 1 Poverty, Alleviation of--19th and 20th Century 1 Russian Famine 1 Spanish-American War, 1898 1 Spanish-American War, 1898--Campaigns--Cuba 1 Spanish-American War, 1898--Campaigns--Puerto Rico 1 Spanish-American War, 1898--Pennsylvania 1 Transportation--Pennsylvania--Philadelphia--History 1 Transportation--Pennsylvania--Philadelphia--History—20th century 1 Unemployment--Pennsylvania--Philadelphia 1 United States--History--Civil War, 1861-1865--Transportation 1 Work environment—Pennsylvania—Philadelphia—History—20th century 1 less ...