History 57 Ferries 22 Slavery 18 Politics and government 11 Bridges 8 Streets 8 Abolitionists 7 more ... Afro-Americana 6 Cemetery records 6 Antislavery movements 5 Democratic 5 Description and travel 5 %SP3 4 Clergy 4 Controversial literature 4 Harbors 4 Campaign literature 3 Campaign literature, 1860 3 John Brown Raid, 1859 3 John Brown raid, 1859 3 Law and legislation 3 Periodicals 3 Slave rebellions 3 Travel 3 Arch St. Ferry 2 Commerce 2 Contempt of legislative bodies 2 Corporation reports 2 Extension to the territories 2 Fairs 2 Ferris wheels 2 Gray's Ferry 2 Guerrillas 2 Justification 2 Legislative power 2 Powers and duties 2 Society of Friends 2 Sources 2 Transportation 2 22nd St., S 1 less ...