John Lewis Gaddis (1941- ) is a diplomatic historian noted for his analysis of the Cold War. The John Lewis Gaddis Papers on George F. Kennan contain interviews conducted by Gaddis for his authorized biography of noted diplomat and historian George F. Kennan and include transcripts and recordings of the interviews.

David Laurence Aaron (1938-) served as Deputy National Security Advisor from 1977–1981. The collection mostly documents Aaron's service under Jimmy Carter's administration, though records dating from his time working for Walter F. Mondale and in the private sector are also present.

Livia Plaks was a co-founder of the Princeton-based Project on Ethnic Relations (PER) and served as executive director. This collection includes publications, correspondence, subject files and photographs created by Plaks relating to the PER.

Richard T. Arndt (1928-) worked in cultural diplomacy for over two decades for the U.S. Information Agency and the Department of State. The collection contains his papers, speeches, article clippings, and correspondence related to cultural diplomacy.

H. Freeman Matthews, Jr., son of H. Freeman Matthews, was a career Foreign Service officer, serving with the State Department from 1952 to 1991. The collection consists of materials documenting Matthews, Jr.'s service with the State Department, in particular, his time as Deputy Chief of Mission in Cairo from 1976 to 1980.

Robert R. Bowie was a foreign policy expert and legal scholar who served four U.S. administrations as policy planner, counselor, and deputy CIA director, while teaching at Harvard Law School and founding Harvard's Center for International Affairs. The Robert R. Bowie Papers reflect his government service under four administrations, as well as his position at Harvard University, his Army service and work in the postwar military government of Germany, research for books he wrote, and his later activities as a member of national and international policy and strategy organizations.

Roland S. (Sletor) Morris was a leader of the Democratic Party in Pennsylvania and was the ambassador to Japan from 1917-1921. The Roland S. Morris Papers consist of correspondence, diaries, writings, and other materials that document Morris's family life, political involvement in the Democratic Party, and his position as the U.S. Ambassador to Japan from 1917-1921.

Consists of papers relating to the controversy over the Bricker Amendment 1952-1957 and includes a bound transcript of an oral history interview with Phleger conducted in 1977 by Miriam F. Stein for the University of California at Berkeley and entitled "Herman Phleger, Sixty Years in Law, Public Service and International Affairs."

James A. Baker III served in senior government positions under three United States Presidents and was a central figure in the administrations of Ronald Reagan and George Bush in the 1980s and early 1990s. Baker also led presidential campaigns for Presidents Gerald Ford, Reagan and Bush over the course of five consecutive presidential elections from 1976 to 1992. The papers document nearly every stage of Baker's career, including his work on presidential campaigns, his time as White House Chief of Staff for both Reagan and Bush, and his terms as Secretary of the Treasury under Reagan and Secretary of State under Bush.

The Freedom House Records document the organization's activities in advocating freedom and democracy throughout the world. The records provide an invaluable insight into an organization that evolved from an answer to Hitler's Braunhaus to a diligent monitor of freedom worldwide.

Edwin W. Kemmerer (1875-1945), internationally known as "The Money Doctor," was an economist and government advisor with expertise in finance and currency. Kemmerer served as a financial advisor to many governments, mostly in Latin America, and spent the majority of his academic career at Princeton University. Kemmerer's papers document his advisory and scholarly career and include his professional correspondence, writings, and files from his financial advisory work.

The Woodrow Wilson Collection consists of Wilson holdings which have been acquired by the Princeton University Library Special Collections gradually over many years by purchase and gifts from many sources. The collection is rich in material prior to Wilson's presidential years, although it is not limited to this period; researchers will find materials documenting both the public and private life of Woodrow Wilson. Various types of information written by or about Wilson are present in the collection, including manuscripts, addresses, articles, correspondence, telegrams, legal documents, booklets, pamphlets, photographs, portraits, cartoons, newspapers and scrapbooks.

John Doar (1921-2014) was a lawyer who worked for the Civil Rights Division of the Department of Justice (1960-1967) and was chief counsel to the House Judiciary Committee investigating the Watergate scandal (1973-1974). He also served as president of the New York City Board of Education (1968-1969) and as president of the Bedford-Stuyvesant Development and Services Corporation (1967-1973). The collection primarily documents Doar's tenure with the Civil Rights Division in the form of court records, investigation files, correspondence, and notes, though materials from Doar's time on the Watergate impeachment inquiry committee and on the Board of Education are also present. To a lesser extent, the collection is composed of records from Doar's work for the Bedford-Stuyvesant Corporation and his private law practice.

This collection consists of materials collected by the law firm of McCarter & English of Newark, New Jersey in connection with representation of the Iowa, Sac and Fox, Otoe and Missouria, and Omaha tribes before the United States Indian Claims Commission between 1958 and 1970. The records document the cases; briefs, findings of fact, valuations, reports and orders are included. More significantly, the records include a vast storehouse of evidentiary documentation on the history of these tribes and others, much of it dating to the early nineteenth century.

The Derso and Kelen Collection consists of correspondence, writings, published material, and over 900 cartoons and caricatures in varying media ranging from pencil sketches and ink drawings to richly-hued watercolors and limited edition lithographic portfolios created by the Hungarian caricaturists and political satirists Alois Derso and Emery Kelen. The vast majority of the works were produced between 1920 and 1950, the active period of collaboration between Derso and Kelen.

Jacob Viner (1892-1970) is considered one of the greatest economists of the twentieth century. His career was spent at the University of Chicago and Princeton University, and he also frequently served as an advisor to the United States government. His primary academic interests included international economics, international economic relations, and the history of economic thought, but his investigations ranged across many disciplines. Viner's papers document his scholarship, as well as his government service, and include correspondence, manuscripts, reports, and research materials.

The American Civil Liberties Union Records document the activities of the Union in protecting individual rights from 1920 through 1995. The files contain materials on freedom of speech, expression, and association; due process of law; equality before the law; legal case files; and organizational records. Within these categories files reflect subject areas such as academic freedom, censorship, racial discrimination, aliens' rights, privacy concerns, labor concerns, amnesty, and government loyalty and security. The files reflect work on litigation, advocacy and public policy, and subject files on various areas of interest connected with civil liberties. Materials include correspondence, court documents, memoranda, printed matter, minutes, reports, briefs, and legal files. Also included are materials from ACLU affiliate organizations, and the Lawyers Constitutional Defense Committee.

The Records of United Service to China, Inc., known from 1941 to 1946 as United China Relief, Inc., document the activities of the organization from the early formation in 1940 to its official consolidation with the American Bureau for Medical Aid to China in 1966. In addition there is a limited amount of material from other Chinese relief agencies that predate the founding of United China Relief / United Service to China. The Records focus on UCR/USC attempts to raise money in the United States, to educate Americans about China and the Chinese people, and to carry on relief work in China. The collection consists primarily of correspondence among the various individuals and agencies involved with UCR/USC, along with other material produced by the agency, such as minutes and publicity material. In addition, the collection includes a series of photographs dealing with China during the 1940s and efforts in the United States to raise money for China during the same period.

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.