Included are two print journals and 6.75 MB of records.

The collection illustrates the literary and military careers of James Gould Cozzens in manuscripts, notebooks, diaries (1920-1970), war journals (1911-1945), correspondence (general, family, and business), documents, memorabilia, clippings, and photographs.

The McCaddon Collection of the Barnum and Bailey Circus consists of correspondence, photographs, scrapbooks, and other material collected by business manager Joseph T. McCaddon prior to the 1907 merger of the circus with Ringling Bros.

Consists of over 2,000 autograph items of prominent English and European figures from the 16th to the mid-19th centuries compiled by the English collector John Wild.

Consists of a chronological series of 101 mathematical notebooks (1958-1997) of Princeton mathematician Bernard M. Dwork.

Consists of Hanna Fantova's collection of Albert Einstein material, as well as some of her own personal papers.

Alpheus T. Mason taught in the Dept. of Politics at Princeton University beginning in 1925 and authored a number of legal works as well as biographies of Supreme Court justices Harlan Fiske Stone and Louis D. Brandeis. This collection consists of papers of Mason, including material relating Stone, Brandeis and Woodrow Wilson.

The Vicente Leñero Papers contain materials pertaining to the Mexican playwright, novelist, and screenwriter Vicente Leñero (1933- ). Included are manuscripts, correspondence, and printed material.

The ACLU is the preeminent civil liberties organization in the United States. These records document the work of their national office in the areas of civil rights, children and women's rights, freedom of speech (and all First Amendment questions), and due process, among many others, predominantly from 1970 to 2000.

Fight for Freedom, Inc. (FFF), a national citizen's organization established in April 1941, was a leading proponent of full American participation in World War II. Believing that the war was a threat to American freedom and security, FFF boldly and vehemently championed the interventionist cause, advocating that all necessary measures must be taken to insure the defeat of Adolf Hitler and the German Army. In addition, FFF worked to preserve fundamental American freedoms at home. An offshoot of the Committee to Defend America by Aiding the Allies, FFF was supported by average citizens, as well as prominent educators, labor leaders, authors and playwrights, clergy, stage and screen actors, newspaper men, and politicians. Acting as a clearinghouse for information related to American intervention in World War II, FFF monitored the activities of the leading isolationist organization, the America First Committee, and many of its key individuals such as Charles A. Lindbergh, Burton Wheeler, and Gerald Nye. From its headquarters in New York City, FFF spread its message through an extensive network of state and local branches, as well as through heavy reliance on local newspaper editors supportive of the interventionist cause. Pearl Harbor effectively ended the isolationist-interventionist debate, and by early 1942 FFF had disbanded.

The Allen W. Dulles Papers contains correspondence, speeches, writings, and photographs documenting the life of this lawyer, diplomat, businessman, and spy. One of the longest-serving directors of the Central Intelligence Agency (1953-1961), he also served in a key intelligence post in Bern, Switzerland during World War II, as well as on the Warren Commission.

Edward S. Greenbaum (1890-1970) was a lawyer in New York City in the legal firm of Greenbaum, Wolff & Ernst who was involved in court reform efforts throughout his career. He also served in the War Department during World War II as executive officer to Under Secretary of War Robert P. Patterson, negotiating contracts with the private sector for munitions and supplies. Greenbaum's papers document his career as a lawyer, as well as his government service, and include correspondence, legal documents, reports, and publications.

General Charles T. Lanham (1902-1978), a decorated WWII General and friend of author Ernest Hemingway, was an accomplished author, trainer, and after retiring from the military had a successful second career as a public relations executive. The Charles T. Lanham Papers document the general's WWII and post war military service and his private sector employment with several corporations. The papers contain correspondence, scrapbooks, photographs, journals, speeches, and legal documents.

The Robert Lansing Papers document the later years of Robert Lansing (1864-1928), lawyer, writer, and the longest serving of Woodrow Wilson's three Secretaries of State. During his tenure as Secretary of State (June 23, 1915 to February 13, 1920), the United States entered the First World War on the side of the Entente Powers. Deliberations and negotiations associated with the precarious neutrality which preceded this event and the troubled peace which followed it dominated Lansing's time in office and are reflected in his papers. Lansing's interests as a lawyer, which were international in scope and substance, and the diverse subjects which commanded his attention as a writer – subjects ranging from biblical history to English etymology – are also evident. The Lansing Papers consist of official papers, personal papers, writings and speeches, diaries, sketches, and photographs. Though by no means exhaustive, they shed light on many aspects of Lansing's life and times.

Fred I. Kent (1869-1954) was a banker who spent the majority of his career at Bankers Trust Company in New York. He was an expert on foreign exchange, and during World War I and its aftermath was involved with establishing foreign exchange policies, reparations, and war debt. Kent was also active in numerous organizations, including the American Bankers Association and the International Chamber of Commerce. Kent's papers include his correspondence with businessmen and politicians about financial and economic issues, articles and speeches written by Kent, and papers documenting his involvement with several banking and economic organizations.

Raymond Blaine Fosdick (1883-1972) served as Under Secretary General for the League of Nations (1919-1920) and as President of the Rockefeller Foundation (1936-1948). The bulk of the collection consists of correspondence related to military life during World War I, the formation and activities of the League of Nations, and the administration of the Rockefeller Foundation in the 1920s through 1940s. The collection also contains various writings and personal memorabilia.

The Arthur Garfield Hays Papers consist of correspondence, case files, speeches, articles, books, news clippings, and photos which document his career as a New York City lawyer and general counsel for the ACLU.

This collection contains interview transcripts, cassette tapes, and background material collected by Peggy Lamson for her authorized biography, Roger Baldwin, Founder of the American Civil Liberties Union: A Portrait. Much of the background material was provided, and in some cases annotated, by Baldwin and documents both his professional and personal life.

Frank W. Notestein contributed significantly to the science of demography and to a better understanding of population problems in world affairs. The Frank W. Notestein Papers contain correspondence, speeches, and writings documenting the research, ideas, career and leadership roles of this former Princeton professor, director of the Office of Population Research, and president of the Population Council.

Charles W. Yost (1907-1981) led a varied career as a diplomat, United Nations representative, writer, and scholar. He was a member of the foreign service intermittently between 1930 and 1971, after which time he devoted himself full-time to writing and teaching. Yost's papers document his professional life in the Foreign Service, as well as his time in academia, and include his correspondence, writings, and photographs.