Sources History 109 Bibliography 78 Manuscripts 48 Archives 42 Catalogs 33 Manuscripts, American 28 more ... Archival resources 9 Politics and government 7 Union catalogs 7 Documents on microfilm 6 History, Local 5 Microform catalogs 5 Emigration and immigration 4 Genealogy 4 History, Military 4 Microforms 4 Minorities 4 Public records 4 Executive departments 3 History, Naval 3 Immigrants 3 Union lists 3 African Americans 2 Agriculture 2 Antislavery movements 2 Broadsides 2 Cabinet officers 2 Church records and registers 2 Early printed books 2 Histoire 2 Indians of North America 2 Lawyers 2 Library 2 Natural history 2 Presidents 2 Publishers' catalogs 2 Railroads 2 Vice-presidents 2 American newspapers 1 less ...