U.S. History
Primary Sources
Infotrac's U.S. History in Context Results of topic searches, i.e., Reconstruction, include both Primary and Secondary Sources.
Oxford African American Studies Center Results of topic searches, i.e., Reconstruction, include both Primary and Secondary Sources.
Library Primary Sources and the History pages (U.S. History) contain links to a variety of high quality primary source collections, such as American Memory.
REF 973 COM Documents of American History (2 vols.)
REF 973 ONE 100 Key Documents in American Democracy
REF 973 OUR Our Nation's Archive: the history of the United States in documents
REF 973.7 Voices of the Civil War--shelved according to battle
Secondary Sources
REF 973.03 ENC Encyclopedia of American History
REF 973.08625 Slavery in America
REF 083.5 ENC Encyclopedia of the United States in the Nineteenth Century
973.2 NAS The Urban Crucible: The northern seaports and the origins of the American Revolution