Consists of the personal library of French philosopher Jacques Derrida and members of his household.

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.

Consists of individual files of former undergraduate students of Princeton University, compiled by the Bureau of Alumni Information. Material in each file varies greatly but most include the names of relatives, notable achievements at Princeton and post-graduation, news items, address updates, and obituaries.

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. Subgroup 2, Series 3 has been digitized and is available for members of the Princeton community to view here. To view the database from outside Princeton University, please see the Guide to the American Civil Liberties Union Records.

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 American Civil Liberties Union Records, The Roger Baldwin years, document the activities of the ACLU from 1917 through 1950. The files contain materials on conscientious objection, freedom of speech, academic freedom, censorship, and labor concerns. The files reflect work on litigation, advocacy, and public policy. Materials include correspondence and newspaper clippings. Subgroup 1 has been digitized in its entirety and is available for members of the Princeton community to view here. To view the database from outside Princeton University, please see the Guide to the American Civil Liberties Union Records.

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.

David Lilienthal served on the Wisconsin Public Service Commission (1923-1932), as a member of the board of directors (1933-1941) and then chairman (1941-1946) of the Tennessee Valley Authority (TVA), as first chairman (1946-1950) of the Atomic Energy Commission, and, later, in private business as an industrial consultant and chairman (1955) of the Development and Resources Corporation, which was involved with the Khuzestan Program in Iran. This collection consists of the papers of Lilienthal spanning his entire career, including correspondence, reports, articles, speeches, and printed matter.

The Adlai E. Stevenson Papers document the public life of Adlai Stevenson (1900-1965), governor of Illinois, Democratic presidential candidate, and United Nations ambassador. The collection contains correspondence, speeches, writings, campaign materials, subject files, United Nations materials, personal files, photographs, and audiovisual materials, illuminating Stevenson's career in law, politics, and diplomacy, primarily from his first presidential campaign until his death in 1965.

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 Hamilton Fish Armstrong Papers consist of correspondence, notebooks, memoranda, material from 1945 United Nations Conference on International Organization, writings especially in relation to Peace and Counterpeace and Tito and Goliath, diaries, scrapbooks, and photographs. The papers document Armstrong's career as editor of Foreign Affairs, his participation in the activities of the Council on Foreign Relations, and his professional involvement and interest in foreign policy from World War I through the 1970s. Included is correspondence with many well known political and literary figures of the time period. Some materials of a personal nature are included but the bulk of the papers relates to Armstrong's professional life. The papers also document Armstrong's participation in many philanthropic activities associated with Yugoslavia.

Hans A. Widenmann (1897-1976) was a stockbroker and economist with expertise in national and international monetary affairs. His successful business career was largely spent at Loeb, Rhoades & Company, and he was also frequently called upon to speak about international finance subjects. Widenmann's papers document his career at Loeb, Rhoades & Company and include his correspondence and writings, topical files, and biographical files.

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.

The Project on Ethnic Relations (PER) was a not-for-profit organization based in Princeton, NJ concerned with the course of interethnic conflicts during the post-communist transitions in Central and Eastern Europe, Russia and former Soviet Union, and the Balkans following 1989 and extending into the 21st century. The collection consists of paper and digital reports and records of consultations, meetings, roundtables (and discussions and preparations for roundtables), and correspondence with leaders of political parties and representatives of governments and international organizations.