Alfred J. Lotka (1880-1949), a statistician for the Metropolitan Life Insurance Company, was a significant contributor to the field of demography. He was a pioneer in the study of population dynamics and conducted research on the mathematical theory of evolution and the mathematical analysis of populations. Lotka's papers document his scholarship and his involvement in professional organizations and include drafts of his works, his notes and research materials, and correspondence.

This collection contains over 600 sets of student notes taken from lectures given by members of Princeton's faculty. They represent the broad range of courses taught at Princeton University (known as the College of New Jersey prior to 1896) and include the works of numerous famous faculty and students.

R. B. O'Connor & W. H. Kilham, Jr. is the New York City architictural firm that was appointed in 1944 to design Princeton University's Firestone Library, which opened in 1948. The collection includes architectural drawings, plans and photographs of Firestone Library (1948) and the later addition of the John Foster Dulles Library of Diplomatic History (1962).

George Adams Graham, faculty member in the Department of Politics at Princeton University from 1935 to 1958, specialized in the field of public administration. He was also active in public life, serving on the Citizens Federal Committee on Education; the Committee on Indian Affairs (a subcommittee of the Hoover Commission on Organization of the Executive Branch of Government); the Committee on Public Administration of the Social Science Research Council; and the second Hoover Commission's Task Force on Personnel and Civil Service. His papers consist of reports, notes, correspondence, and subject files from his service in these capacities.

The collection consists of group portraits and other photos of Princeton University classes. Though some photographs depict the classes while their members were students, the majority of the photographs are from alumni reunions.

The collection illustrates the literary career of American author and professor Carl Van Doren, including typescripts and research notes for his Pulitzer Prize winning biography of Benjamin Franklin. The collection also contains various documents, including Van Doren's will, souvenirs, memorabilia, photographs, clippings, and printed material, as well as legal papers and correspondence dealing with his participation in several lawsuits involving copyright infringement.

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 Delafields were avid collectors of family history and family-related memorabilia in the Hudson River Valley region of New York state. This collection consists of the papers of the Delafield family and related families, most prominently the Livingstons, containing both personal papers and papers collected for their genealogical and historical significance.

The Class Records consist of a diverse set of materials documenting the history and activities of Princeton University classes during their time as undergraduates and as alumni. In the collection are correspondence, newsletters, publications, photographs, and memorabilia, all of which pertain to a particular Princeton University graduating class and its members.

Consists primarily of professional correspondence of literary scholar, author, and novelist Ralph Freedman (1920-2016).

George F. Kennan (1904-2005) was a diplomat and a historian, noted especially for his influence on United States policy towards the Soviet Union during the Cold War and for his scholarly expertise in the areas of Russian history and foreign policy. Kennan's papers document his career as a scholar at the Institute for Advanced Study and his time in the Foreign Service, and include his correspondence files, published and unpublished writings, and personal files.

The Paul Frankl Papers consists of correspondence, writings, notebooks, photographs, and printed matter of the Czech art historian, architect, author, and educator Paul Frankl (1878-1962). A native of Prague, Frankl came to the United States in 1938, and shortly afterwards settled in Princeton, New Jersey, where he was associated with the Institute for Advanced Study.

The Papers of James F. Hoge, journalist, editor and foreign affairs expert, chronicle his contributions to foreign affairs issues while he was the editor of Foreign Affairs magazine from 1992-2010 and the Peter G. Peterson Chair at the Council on Foreign Relations. Hoge's intellectual contributions to foreign affairs discussions are in the form of speeches, articles, commentaries, book reviews, correspondence and interviews with contemporary experts or participants in the foreign affairs issues of the time.

WPRB is the student-operated FM radio station of Princeton University, providing music and live sports broadcasts to the Princeton campus community and surrounding areas. The records consist of various materials which document the origins and development of WPRB, including constitutions, by-laws, photographs, membership lists, clipped articles, board minutes, correspondence, and financial reports.

Consists primarily of original artwork created by Charles E. Fehon, Princeton Class of 1950, during the process of designing sets and costumes for Princeton theater groups including Theatre Intime, University Players, and the Triangle Club.

The Triangle Club Records consists of records of the Club and its predecessor, the Princeton College Drama Association, for productions performed by these organizations from 1883 to the present. Materials include correspondence, playbills, scripts, scores, newspaper clippings, posters, scrapbooks, and photographs as well as audio-visual recordings.

Harry Dexter White (1892-1948) was an economist with expertise in international finance and monetary issues. White served in the United States Department of the Treasury from 1934 to 1946, rising to the position of Assistant Secretary of the Treasury, and was one of the principal architects of the Bretton Woods agreements in 1944 that established the International Monetary Fund and the World Bank. White's papers document his service in the Department of the Treasury and include correspondence and memoranda, notes, and writings.

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.

This collection contains more than 2,300 items, including film, videotapes, compact discs, audio cassette tapes, reel-to-reel tape, and record albums and covers a broad range of topics including classical music, alumni reunions, lectures, and interviews.

The Department of Chemistry at Princeton University dates back to the early days of the College of New Jersey, and today it is one of the University's largest undergraduate concentrations. The collection contains examinations and grade books, records pertaining to chemistry research performed at the department in support of the U.S. Manhattan project and departmental records.