The collection comprises buttons, keychains, flags, banners, and black-and-white and color photographs, negatives and contact sheets related to various labor strikes, commemorative events, political party and labor union election campaigns, women's rights causes, anti-war activism and demonstrations, and socialist political causes.

This collection contains pamphlets, manuscripts, correspondence, and ephemera related to labor movements and issues, Anarchism, Communism, Marxism, Socialism, Trotskyism, civil rights, anti-war and peace movements, the Soviet Union and the Russian Revolution, and related subjects in the arts, sciences, religion, sports, economics, education, and government.

The collection contains bulletins and reports by International Socialists, a third camp Trotskyist organization in the United States.

The collection comprises the papers of Asher Harer, a member of the Socialist Workers Party and Socialist Action, as well as a trade unionist and anti-Vietnam War activist. It includes correspondence, photographs, reports, resolutions, minutes, notes, study guides, flyers, newsletters, leaflets, newspapers and newspaper clippings, and scrapbooks.

This collection includes material collected by Lyle Fulks, a member of the Socialist Workers Party and Solidarity. It includes material from other Socialist organizations, such as Workers Power, Socialist Action, and International Socialist. Besides material related to Socialist organizations, the collection also includes teaching syllabi, articles, personal material, and other subjects related to Socialism, Communism, Marxism, labor, and social justice.

The collection contains the papers of Meryl and Manny Sunshine, socialist activists who were members of the Freedom Socialist Party, Radical Women, the Committee for a Revolutionary Socialist Party, the Peace and Freedom Party, and other organizations. It includes subject files, convention and conference materials, leaflets, photographs, bulletins, reports, memoranda, press releases, minutes, publications, election materials, and draft proposals.

This collection contains the personal and professional papers of Marjorie and Paul Colvin, members of the Socialist Workers Party and political activists who protested against the Vietnam war and other U.S. interventions during the 1960's and 1970's. It includes meeting notes, flyers, correspondence, and newspaper clippings related to the various organizations and movements they were involved with.

This collection includes the personal and professional papers of Berta Green Langston, an active member of the Socialist Workers Party and Socialist Action who was involved in various protest movements during the 20th century. It includes newsletters, newspaper articles, miscellaneous writings, and correspondence with James Baldwin, Robert F. Williams, Albert Perry, Dave Dellinger, William Worthy, Pete Seeger, and Noam Chomsky, among others.

This collection includes the personal and professional papers of Thomas F. Barton, an anti-war activist and socialist who organized soldiers against the Vietnam and Iraq wars. It includes newsletters, articles, correspondence, meeting minutes and agendas that document Barton’s involvement with various anti-war and socialist organizations, and the distribution, founding, and publishing of various anti-war newsletters.