Allen Macy Dulles, son of Clover Todd and Allen Welsh Dulles, was a student of history and politics with plans for a career in public service until he sustained a serious injury in the Korean War. The collection consists of correspondence between family members prior to and following Allen Macy Dulles' injury as a Marine lieutenant in the Korean War.

Paul R. Sweet (1907-2003) was a political intelligence officer for the Office of Strategic Services (OSS) in the Research and Analysis (R and A) branch during World War II. He later worked for the U.S. State Department and was a history professor. This collection documents Sweet's professional life, especially his service in the OSS and his teaching career. The collection also contains family correspondence.

Harold Boies Hoskins was a businessman, diplomat, and educator working in Middle Eastern affairs. This collection consists of correspondence, diaries, notes, photographs, publications, maps, and professional files that document Hoskins' personal and professional activities, as well as the Hoskins family.

Tristan E. Beplat (1912-1997) was a New York banking executive with expertise in international banking. He had a significant role in the economic reconstruction of postwar Japan through his work in the Finance Division of the Economic and Scientific Section, General Headquarters, Supreme Commander for the Allied Powers. Beplat's papers document his service in Japan and include memoranda, papers, and reports on the banks and economy of Japan from 1945 to 1948.

The Woodrow Wilson Additional Materials consist of materials that the Seeley G. Mudd Manuscript Library has acquired on Woodrow Wilson since the mid-1990s.

Prentice Northup Dean (1897-1981) was a practicing economist for the United States Tariff Commission and the Office of the Secretary of Defense. He also held teaching positions at Princeton University, the University of Pittsburgh, and Buena Vista University. Dean's papers document his service as United States delegate to the meetings of the General Agreement on Tariffs and Trade (GATT) and his years studying at the American University in Beirut, and include correspondence, diaries, documentation of conferences, memorabilia, and newspaper clippings. The papers also include the correspondence, diaries, and manuscripts of his family members May Dershimer née Walter and Martin R. Walter.

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 2, 3, and 4 have been digitized and are 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.

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.

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 4 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.

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.