History 31 Sources 12 Bibliography 9 Manuscripts, American 9 Manuscripts 6 Archives 5 Slavery 5 more ... Exhibitions 4 African Americans 3 Antislavery movements 3 Indians of North America 3 Archival resources 2 Constitutional history 2 Description and travel 2 Discovery and exploration 2 Dutch 2 Foreign public opinion, French 2 Law 2 Politics and government 2 Presidents 2 Swedes 2 African American musicians 1 Agriculture 1 Anniversies, etc 1 Botanists 1 Botany 1 Catalogs 1 Catholics 1 Causes 1 Centennial celebrations, etc 1 Chandlee genealogy 1 Charities 1 Clock and watch makers 1 Clocks and watches 1 Commerce 1 Correspondence 1 Death notices 1 Drawing 1 Drawing, American 1 Early printed books 1 less ...