This collection consists of periodicals issued between 1963 and 2000 with most of the material dated prior to 1990, including non-periodical material arranged by issuing organization. Topics covered include draft resistance and conscientious objectors during the Vietnamese Conflict, civil rights, the peace movement, disarmament, the women's movement, student unrest, and the labor movement.

The Osiris Collection, 1972-2021, contains material related to the production of the magazine as well as Andrea Moorhead's personal career. The bulk of the material is correspondence. Other material includes business financial material and production material for Osiris; and manuscripts, correspondence, acceptance letters, and publications documenting Andrea Moorhead's poetry and translation career. Osiris is still an actively publishing magazine. The material in this collection documents the life of Osiris until 2013.