Consists of a small archive of files from English publisher and author Fredric Warburg (of Secker & Warburg).

Consists, for the most part, of letters received by American physician and collector F. L. Pleadwell and his wife, the former Laura Mell Stith, concerning Pleadwell's collection of autographs and books in the literary and historical fields, but includes an album of letters and other items collected from prominent associates in the medical field.

Consists primarily of correspondence of the American educator, art critic, and museum director Frank Jewett Mather (1868-1953).

Consists of a group of family papers and genealogical research collected by members of the Blair family, a prominent political family in the United States in the 19th century. Materials relate to Francis Preston Blair Sr. (1791-1876) and his descendents, including Frank P. (Francis Preston) Blair Jr., Apolline Alexander Blair, Francis Preston Blair III, Andrew A. Blair, James L. Blair, Gist Blair, Emily Blair Henrotin, and others. Included are correspondence, documents, genealogical research, photographs, printed materials, and writings related to politics, military service, family history, and domestic life.

Francis Catlin was a member of the Princeton University Class of 1947. The collection contains materials distributed at the 1947 Bicentennial Convocation celebrating Princeton University's 200th anniversary.

Frances de Chollet (1900-1994) assisted Allen Dulles with obtaining the diaries of Galeazzo Ciano, the Foreign Minister of Italy from 1936-1943, from Ciano's wife, Edda, who was also the daughter of Benito Mussolini. The collection is mostly composed of correspondence written to Frances de Chollet from Edda Ciano, though letters from Allen Dulles and other correspondents are included to a lesser extent. The collection also contains a small amount of de Chollet's notes documenting her face-to-face meetings with Edda Ciano.

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

The Fevzi Çakmak Diaries consists of diaries, a notebook, and a calendar of the Turkish military leader and government official Fevzi Çakmak.

The Felice and Mildred Morris Autograph Collection consists of letters from numerous 19th- and early 20th-century actors, actresses, playwrights, and others associated with the theater, collected by the Morrises. Included are James Matthew Barrie, Edwin Booth, Dion Boucicault, Frances Hodgson Burnett, Wilkie Collins, Charlotte Cushman, Clyde Fitch, Charles Dana Gibson, Laurence Hutton, Louis Napoleon Parker, Adelina Patti, William Seymour, Otis Skinner, and Kate Wiggin.

Consists of selected correspondence, manuscripts, and documents of and about Ezra Pound, who was one of the most ambitious, influential, and innovative American poets of the modernist period.

Esther Hoffman served with the Intelligence Establishment of the Department of the Army for over forty-one years. Doris Hoffman worked as a secretary for the League of Nations Commission in Peking, China between 1929 and 1934. The collection consists largely of letters written home by sisters Esther and Doris Hoffman while employed in Peking, China between 1925 and 1941.

Consists mostly of letters by German-American art historian Erwin Panofsky to friend and art historian Margaret Scolari Barr.

Consists primarily of correspondence between American novelist Ernest Hemingway and his friend Milford J. Baker.

Consists of the personal papers of Ernest Cushing Richardson, librarian of Princeton University Library from 1890 till 1925.

The Emir Rodriguez Monegal Papers consists of correspondence, manuscripts of novels, short stories, verse, plays, and essays by others, mansucripts of essays and criticism by Rodriguez Monegal, photographs, and printed and recorded material.

Consists chiefly of selected letters of J. J. Hayes sent to Emily Hale related to the Irish theater in the first quarter of the twentieth century.

Primarily consists of reports, memoranda, and drafts of speeches and press releases created in the course of Emily Brown's work for various government agencies during and following World War II, in particular, the War Relocation Authority, where she worked in the Reports Division, and the Federal Security Agency.

Consists of photocopies and photographs of Elmer W. Engstrom's diplomas, certificates, and honors (1902-1970), as well as copies of addresses delivered and papers written (1933-1970) for both scholarly and popular periodicals during his career as an electrical engineer.

Consists of correspondence and manuscripts related to the anthology Democracy at the Crossroads (1932), arranged by Ellis Meredith, a suffragist and journalist from Colorado.

Elias Boudinot was a lawyer and Revolutionary statesman, serving as member of the Continental Congress (president, 1782), secretary of foreign affairs (1783-84), New Jersey congressman (1789-95), and director of the U.S. Mint (1795-1805). The collection consists of miscellaneous letters and documents of Boudinot, many of which concern his land dealings.