The collection consists of manuscripts, writings, correspondence (both personal and professional), photographs, works of others, microfilm, printed material, and film reels, spanning more than 50 years, concerning Velikovsky's controversial ideas, the books that he wrote, and the history of opposition and criticism from the academic community that he received following the publication of his first book, Worlds in Collision, in 1950. Colleges and universities threatened to boycott the textbook division of the publisher, Macmillan & Co., which led to the transfer of the publishing rights to Doubleday & Co., even though the book had reached the number one spot on the best-sellers list. The book was eventually banned from a number of academic institutions, and several people lost their jobs because of it.

George "Bob" Vaughn, Jr., Class of 1919, was a decorated World War I pilot and a pioneer in the aviation field. The collection consists of newspaper clippings, scrapbook pages, photographs, filmed interviews, an autobiographical manuscript and other materials that document the life and aeronautical career of George Vaughn.

The Henry Van Dyke Family Papers consists of papers of three generations of the prominent Van Dyke family of New York and Princeton, beginning with Henry Jackson Van Dyke (1822-1891) and his wife, Henrietta [Ashmead] Van Dyke (1820-1893), followed by their children, Henry Van Dyke (1852-1933) and Paul Van Dyke (1859-1933), and ending with Henry van Dyke's son Tertius Van Dyke (1886-1958).

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.

Consists of papers of "Jan Valtin," the literary pseudonym of Richard Julius Herman Krebs.

The Nanos Valaōritēs Papers consists of the writings, notebooks, sketchbooks, correspondence, and printed matter relating to Pali of the Greek poet, novelist, playwright, and editor, Nanos Valaōritēs. There are also wtitings of other people.

The Helenē Vakalo Papers consists of papers by and relating to the Greek art critic and poet Helenē Vakalo (1921-2001). Included are autograph and typed manuscripts of Vakalo's poetry, lectures, articles, and essays, as well as her correspondence, notebooks, loose notes, and memorabilia. There are also official documents, photographs, awards, printed material, and several works by prominent Greek writers and artists. Of particular importance are the unpublished works and early manuscripts, as well as Vakalo's correspondence with her husband, painter, stage designer, art critic, and writer Giōrgos Vakalo, and with numerous distinguished artists and literary figures.

The Giōrgos Vakalo Papers consists primarily of papers by and relating to the Greek painter and stage designer George Vakalo (1902-1991). Included are autograph and typed manuscripts of Vakalo's notes, talks, articles, interviews, TV or radio productions, artwork, as well as his correspondence, notebooks, photographs, and printed matter, such as exhibition art catalogs, magazines, and clippings. Of particular importance are the hundreds pieces of his artwork in a variety of media (ink, pencil, watercolor, conté crayon, engravings) and on a variety of supports (paper, carton, and canvas).

Consists of a collection of thirty-one miscellaneous documents concerning the incarceration of Japanese Americans by the United States government during World War II at the Tule Lake Relocation Center (later Tule Lake Segregation Center) and other American concentration camps. Most of the materials in this collection relate to a 1943 loyalty questionnaire and the resulting segregation at Tule Lake of those labeled as "disloyal," which led to thousands of incarcerated Japanese Americans deciding to renounce their U.S. citizenship and apply for repatriation to Japan. Materials document resistance efforts by organized groups, such as Sokuji Kikoku Hoshi-dan, as well as individual acts of resistance by incarcerees.

The Records of United Service to China, Inc., known from 1941 to 1946 as United China Relief, Inc., document the activities of the organization from the early formation in 1940 to its official consolidation with the American Bureau for Medical Aid to China in 1966. In addition there is a limited amount of material from other Chinese relief agencies that predate the founding of United China Relief / United Service to China. The Records focus on UCR/USC attempts to raise money in the United States, to educate Americans about China and the Chinese people, and to carry on relief work in China. The collection consists primarily of correspondence among the various individuals and agencies involved with UCR/USC, along with other material produced by the agency, such as minutes and publicity material. In addition, the collection includes a series of photographs dealing with China during the 1940s and efforts in the United States to raise money for China during the same period.

Richard Ullman (1933-2014) was a scholar of U.S. foreign policy and international affairs. The collection documents Ullman's career as an academic, his service with the U.S. State Department and the Council on Foreign Relations, and his process of researching and publishing the three-volume Anglo-Soviet Relations, 1917-1971.

Consists of the extant papers of James Ramsey Ullman (Princeton Class of 1929), American novelist, theatrical producer, world traveler, and mountain climber. Included are manuscripts of most of his major works, many shorter works, correspondence, and subject files.

Karl S. Twitchell was an American mining engineer who conducted extensive surveys in the Middle East, Europe, and South America between 1915 and the 1950s. His papers document the span of his career, particularly his interest in the Middle East, and include correspondence, journals, notes, reports, writings, topical files, photographs, and maps. Personal documents and correspondence with family and associates are also contained.

Consists of personal papers of Kaiē Tsitselē, Greek author and translator, who contributed to the dissemination of the Modern Greek literature outside Greece. The collection consists of manuscripts of some of Tsitselē's novels, short stories, radio scripts, and book reviews along with her English translations of Greek works. Correspondence with her friends and colleagues completes the collection.

Contains over 3000 manuscripts relating to the Rossetti's and their friends. While Dante Gabriel is the central figure, his brother and sisters (William Michael, Christina Georgina, Maria Francesca) are also represented, as are several other members of the Polidori/Rossetti families. The material in the collection was acquired by Janet (Camp) Troxell between 1930 and 1965.

Consists of letters to Gilbert Troxell from Sinclair Lewis, John O'Hara, and Carlotta Monterey O'Neill, the wife of Eugene O'Neill, discussing the donation of manuscripts to the Sterling Memorial Library at Yale University.