A collection of personal papers of Elizabeth (Betty) Blake, who was very active in both the Columbia and broader Manhattan communities, consisting primarily of correspondence, meeting agendas, minutes, and Columbia University memorabilia.

The collection consists of correspondence, memos, publications, reports, press clippings, press releases, sermons and speeches retained by the Rev. John D. Cannon, University Chaplain at Columbia University, 1966-1969.

Established in 1965 by Columbia University, the Double Discovery Center (DDC) provides educational programs and services to low income and first generation college-bound junior high and high school students in New York City. The DDC is one of the oldest Upward Bound programs in the United States. The collection contains the records of the DDC from 1965 to 2005, including student files and materials documenting the DDC's primary programs, Upward Bound and Talent Search.

This collection contains records documenting Columbia University's activities slightly prior to, during and immediately following World War I. The collection consists of mostly correspondence, but also includes newspaper clippings, pamphlets, various publications, reports, photographs, service record cards, and numerous lists of Columbia men and women who served during the war.

Beginning in the late 1970s, Columbia students urged the university to divest from companies doing business in South Africa in protest of South Africa's system of apartheid. After a series of student protests culminating in a month long blockade of Hamilton Hall in 1985, the Trustees voted to begin full divestment. The collection contains the administrative records of this decision making process in the 1970s-1980s.

The materials that comprise the Historical Biographical Files have been collected and added to from a variety of sources over the years by current and previous staff. The files consist of materials related to people who have a connection to the University whether as student, alumni, administrator, faculty, staff, guest lecturer, or honorary degree recipient. Materials generally consist of newspaper and magazine clippings, press releases, programs, ephemera, printed matter, lists, reports, and pamphlets.

The Alumni Class Records contains materials pertaining to the alumni from the Classes of 1842 to 1963, from Columbia College and the School of Mines, later the School of Engineering and Applied Sciences. Content includes programs, menus, invitations, clippings, correspondence, and printed matter related to activities from college days to the many reunion events in the subsequent years.

This collection contains correspondence, newspaper clippings, calendars, posters and other printed matter, memorabilia including textiles, such as banners and t-shirts that document and commemorate the anniversary celebrations of Columbia University.

The Historical Subject Files Collection documents Columbia University history and related topics from 1754 to the present. The collection includes articles, booklets, clippings, correspondence, memoranda, non-photographic images, notes, pamphlets, posters, press releases, programs and reports.

Records documenting Columbia University's activities prior to, during and immediately following World War II represent the focus of the collection. The collection contains material generated by a variety of groups and offices on campus evidencing the varied activities undertaken by the Columbia community during this time of world crisis.