Editor and author. Correspondence, articles, biographies, date books, diaries, radio scripts, histories, and speeches documenting Allen's career as editor of Harper's Magazine, director of the Foreign Policy Association, author of many popular works on American social history, and an overseer of Harvard University.

Author and biographer. Family and general correspondence; research notes; drafts of writings, speeches, and articles; publication production materials; clippings; scrapbooks; and printed matter relating primarily to Bowen's writings, especially her biographies of John Adams, Francis Bacon, Sir Edward Coke, Benjamin Franklin, and Oliver Wendell Holmes, and her study of the Constitutional Convention of 1787.

Author, journalist, news analyst, and government official. Correspondence, manuscripts of articles and early pieces of fiction, subject file, radio scripts, biographical material, lectures and speeches, and photographs relating to Davis's career.

Economist and editor. Correspondence, project reports, writings, printed matter, and other papers relating chiefly to Kellock's work with the Federal Writers' Project, the Department of State, and the Department of Agriculture Resettlement Administration.

Zoologist and conservationist. General correspondence, writings, printed matter, and miscellaneous material relating to Osborn's interest in population control, soil conservation, forestry, public health, and natural resources.