This collection contains correspondence, speeches, lecture notes, writings, and photographs of Edward S. Corwin, a noted constitutional scholar who taught at Princeton University for much of his academic career. Nationally-known and widely published, Corwin consulted with many other academics as well as politicians involved with constitutional issues, most notably when he publicly supported Franklin D. Roosevelt's Supreme Court reorganization ("court packing") plan.

Allen W. Dulles (1893-1969), though a diplomat and lawyer, was renowned for his role in shaping United States intelligence operations, including the longest service as director of the Central Intelligence Agency (CIA). The Allen W. Dulles Digital Files contain scanned images of professional correspondence, reports, lectures, and administrative papers, declassified and released by the CIA in 2007. The collection spans Dulles's time as Chief of the Office of Strategic Services office in Bern, Switzerland during World War II, his work at the Central Intelligence Agency, and his retirement.

The Printed and Audiovisual Materials series contains the published works of the ACLU, including publications, audio recordings, and videos. These include educational materials published by the ACLU, newsletters, press releases, and public appearances and interviews with ACLU staff.

Blair Clark was a journalist and political activist who held many positions in both spheres. His papers contain items related to his employment with CBS News, his role in the establishment of the Edward R. Murrow Chair at Harvard University's Kennedy School of Government, and personal correspondence.

C. Pardee Foulke was a prominent Philadelphia businessman. The C. Pardee Foulke Papers on Woodrow Wilson contain an unpublished biography of Woodrow Wilson.

The Roger Nash Baldwin Papers document the life and career of Roger Baldwin (1884-1981), a prominent and active American civil libertarian for almost all of his prodigiously long life. Baldwin is remembered first and foremost as a founder of the American Civil Liberties Union. Many of the papers in this collection document his involvement with the conscientious objection movement that served as the forerunner to the ACLU and with the Union itself. He served as both its executive director from its foundation in 1920 to his retirement in 1950 and as an advisor from that date until his death in 1981. However, Baldwin cast his net much wider than just the ACLU. During the 1920s and 1930s, he was involved with various left-wing political organizations, including the Industrial Workers of the World. Following the end of World War II, he served as an advisor to the U.S. Army and the United Nations in Germany, Austria, Japan, and Korea, guiding the establishment of democracy in those countries, and he was for many years chair of the International League for the Rights of Man. He spoke and wrote widely, most often on issues of civil liberties and human rights, and also taught periodically throughout his life. The papers, which include correspondence, memos, writings, notes, and photographs, document all aspects of his public life, as well as some portion of his personal life.

The Council on Books in Wartime Records (1942-1947), an organization of publishers and other literary professionals focusing on the promotion of books and reading to further the war effort, consists of records from the preliminary foundation meetings at Times Hall, New York, through the cessation of formal operations in 1946. The major activities of the organization were focused on its two subsidiary publishing ventures, the Armed Services Editions (1943-1947) and the Overseas Editions, Inc. (1944-1945). The Records consist primarily of correspondence of council members, publishers, printers, booksellers, librarians, and the general public. Also present are meeting minutes, press releases, bulletins, radio scripts, contracts, financial records, letters from servicemen, a few photographs of authors and council members, newspaper clippings, and posters. At its last annual meeting in January 1946 the Council's Board of Directors determined that at the end of operations "such records of the Council as merit preservation shall be deposited in an appropriate public institution such as Princeton University Library." The Records were subsequently acquired by Princeton University Library and then librarian Julian P. Boyd.

The Development and Resources Corporation (D&R), founded and directed by David E. Lilienthal, operated from 1955 to 1979 and was based in New York City. D&R provided regional economic development services to governments throughout the world, often with a focus on the development of water resources and the construction of dams. Its main project was the development of the Khuzestan region of Iran. D&R's records document its development projects and business operations and include correspondence, contracts, data and maps, proposals and reports, and collected materials about each country.

James V. Forrestal (1892-1949) was a Wall Street businessman who played an important role in U.S. military operations during and immediately after World War II. From 1940 to 1949 Forrestal served as, in order, assistant to President Roosevelt, Under Secretary of the Navy, Secretary of the Navy, and the first Secretary of Defense. The Forrestal Papers document his service from Under Secretary of the Navy to Secretary of Defense and include correspondence, memoranda, reports, speeches, and press releases.

John Marshall Harlan (1899-1971), a distinguished lawyer and jurist, served on the U.S. 2nd Circuit Court of Appeals and the U.S. Supreme Court. Harlan's papers consist of legal materials, correspondence, writings, and personal papers that document his career as an attorney and a judge, especially the period when he was a Supreme Court Justice.