American newspapers--Ownership 1 Chronology, Historical 1 City planning--Pennsylvania--Philadelphia 1 Compromise of 1850 1 Decedents’ estates--Pennsylvania 1 Education, Urban--Pennsylvania--Philadelphia 1 Education, Urban--United States--Administration 1 more ... Education--Pennsylvania--History 1 Education--United States--History--20th century 1 Education--United States--Management 1 Freemasons--Philadelphia--19th century 1 Grotjan's Philadelphia Public Sales Reports 1 High speed ground transportation 1 Liberty loans 1 Mayors--Pennsylvania--Philadelphia 1 Mexican War, 1846-1848 1 Middle Atlantic States--Commerce 1 Municipal charters--Pennsylvania--Philadelphia 1 Municipal government--Pennsylvania--Philadelphia 1 Municipal officials and employees--Pennsylvania--Philadelphia 1 Pennsylvania Council of National Defense. Four Minute Men (Philadelphia, Pa.) 1 Pennsylvania--History 1 Pennsylvania--History--1775-1865 1 Pennsylvania--History--Colonial period, ca. 1600-1775 1 Pennsylvania. Governor’s Committee for Transportation 1 Philadelphia (Pa.)--City planning 1 Philadelphia (Pa.)--Civic improvement 1 Philadelphia (Pa.)--Hickory Club 1 Philadelphia (Pa.)--Race relations--History--20th century 1 Philadelphia (Pa.)--Social problems 1 Plantation 1 Plantations--Pennsylvania--Philadelphia 1 Reading (Pa.)--Riots 1798 1 Republican Party (Pa. : 1792-1828) 1 Scott, Dred 1 Segregation in education--Law and legislation--United States--History 1 Shipping--Middle Atlantic States 1 Slavery 1 Social reformers--Pennsylvania--Philadelphia 1 Taxation--Pennsylvania 1 less ...