If you're not sure where to begin, start by searching the primary source portals below. These search across many collections and can lead you to the right primary source database for your topic.
Access documents on civil rights; civil liberties; race, children and women’s rights; freedom of speech and due process in the United States from 1912-1990.
Access the papers of the Civil Rights Congress (CRC), a civil rights organization formed in 1946 by a merger of the International Labor Defense and the National Federation of Constitutional Liberties.