Consists of works, correspondence, and documents of William Kelly Prentice, a Greek scholar and authority on classical inscriptions, as well as selected papers of his father and various other family members.

Consists of envelopes both used and unused (also known as covers), letters, postcards, documents, postage stamps, and a variety of other philatelic material from around the world as collected and annotated by the Reverend William Hogarth Tower (1871-1950). The collection spans the topics of English Postal History, United States Postal History, War Covers, Philatelic Miscellany, and Franking.

Consists of manuscripts, photographs, and ephemera by and about the Lebanese-American philosophical essayist, novelist, mystical poet, and artist Kahlil Gibran, who, by fusing elements of Eastern and Western mysticism, achieved lasting fame with such poetic works as The Prophet (1923) and Jesus, the Son of Man (1928). This material was collected by William H. Shehadi.

William F. Shellman was a member of the Dept. of Architecture faculty at Princeton University faculty forty years (1946-1986). He taught introductory courses in architecture and the visual arts and courses designed to heighten architectural students' visual sensitivity. His collection consists of his papers, primarily lectures and notes for his classes, but including matted illustrations and photographs of sample forms of architecture, cassette tapes of lectures, slides, architectural drawings, and watercolors.

The papers consist primarily of records maintained in William Fitts Ryan's congressional office in Washington, D.C. his district office in New York City, and campaign materials.

Consists of correspondence and miscellaneous material relating to the Welsh translator, novelist, and storywriter Arthur Machen (1863-1947) that was collected by the American businessman and author William Francis Gekle.

Consists of manuscripts and letters of American novelist and Nobel Prize winner William Faulkner and related materials, including manuscripts of Maurice Coindreau's translation into French of four Faulkner novels.

William E. Colby, Princeton University Class of 1940, was a career agent in the Central Intelligence Agency (CIA) and Director of Central Intelligence from 1973-1976. However, the bulk of the collection documents his post-CIA career and contains correspondence, speeches, writings, newspaper clippings, and subject files that reflect Colby's professional and private interests.

William Horne and Ernest Hemingway were lifelong friends. Horne met Hemingway while a volunteer ambulance driver for the American Red Cross during World War I. They were stationed in Schio, Italy, and drove together on the same ambulance. After Hemingway's failed engagement to Agnes von Kurowsky, they shared an apartment in Chicago during the fall of 1920. When Hemingway married Hadley Richardson in September 1921, Horne was in the wedding party. When the writer died in 1961, Horne was an honorary pallbearer. Contains eight Horne-Hemingway items: a copy of a photograph of Frances Horne [Bunny] and Hemingway in Wyoming in 1928; an autograph signed letter by Ernest Hemingway (with postcript by wife Pauline) to "Dearest Bunny and Horney" [Frances and William Horne], dated 9 September [1929], 2 pp., with envelope; an autograph signed letter by Hemingway to "Dear 'Orny" [Horne], dated 1 June [1930], 2 pp., with 5 pp. of fishing gear advertisements with holograph annotations, with envelope; a typed letter (copy) (dictated to Pauline by Hemingway) to "Dear Horny," dated 23 November [1930], on hospital X-ray form; a typed letter (copy) (dictated to Pauline by Hemingway) to "Dear Horney," dated 26 December [1930], 1 p.; autograph signed letter by Hemingway to "Dear Horney" [William Horne], dated 25 March [1931], 1 p., with envelope; a color copy of a telegram sent by Mary and Ernest Hemingway to Mr. and Mrs. Peter Dodge Horne on the occasion of their wedding, 17 September 1955; and a compact disc recording of "Memories of Ernest Hemingway by William Dodge Horne, Jr., whose grandson, William C. Horne, taped the conversation during an English class at Loyola Academy in Wilmette, IL on May 8, 1975"; 1 p.; Also included are a copy of Horne's first person article "The Hemingway I Remember," "as told to Virginia Kleitz Moseley," that appeared in November 5, 1979, issue of the Princeton Alumni Weekly, and a short piece (2012) about Horne's gift of a Hemingway trunk to the Hemingway Museum in Oak Park, Illinois.

The collection consists of documents, correspondence, photographs, and other papers of William Courtenay (1832-1901), an English settler, veteran of the American Civil War, and frontier businessman who held positions in the United States Department of the Interior as postmaster, clerk, and Indian Agent at Fort Berthold, Dakota Territory, from 1874 to 1882. These materials document conditions at the Fort Berthold Indian Reservation and are of particular interest for their documentation of frontier transactions, corruption and mismanagement within the reservation system, and the relationships between the people of the Three Affiliated Tribes (Mandan, Hidatsa, and Arikara), the Sioux people, and white settlers.