William O. Baker (1915-2005) was a prominent research chemist, head of Bell Laboratories, and a frequent advisor to the government on scientific affairs and technology. His government service spanned from the Truman administration through the Bush administration and focused on intelligence gathering and national security issues. Baker's papers document his government service beginning with President Eisenhower, as well as his career at Bell Labs, and include correspondence, writings, and reports.

The Thomas Jefferson Papers Project was conceived of in 1943 by Princeton University history professor Julian P. Boyd, who was serving at the time as the historian of the Thomas Jefferson Bicentennial Commission. Contained in the records is correspondence with Princeton presidents Harold T. Dodds and Robert F. Goheen, who were active advisors in the early years of the project. Also included are financial records, including Boyd's original cost estimations for the project. Other materials consist of an initial project proposal, annual reports, directives on handling of materials, typography, and editing procedures, and some photographs.

Ralph Barton Perry was a member of the Princeton University Class of 1896, a Harvard Philosophy Professor, and a Pulitzer-Prize winning writer producing works on philosophy, history, and politics in his lifetime. The Ralph Barton Perry Papers consist of correspondence, speeches, clippings, and other materials documenting Ralph Barton Perry's life as an alumnus of the Princeton Class of 1896.

Correspondence, personal and business files, publicity materials, drafts, photography props, teaching materials, appointment books, and memorabilia of Ruth Bernhard (1905-2006), a German-born American photographer and teacher, active in the United States from the late 1920s through the early 2000s, best known for her complex black-and-white still lifes and classical photographs of the female nude. The papers contain professional correspondence and files, personal correspondence with friends and students, a small amount of photographic work and writings, some drafts and proofs for publications, publicity folios, exhibition catalogs and announcements, posters, props used for still life photography and teaching, planners, and a large collection of memorabilia, including snapshots of Bernhard, collected fine art photographs and artwork by others, photograph albums, gifts, personal effects, awards, and some audio and visual materials.

Princeton professor of astronomy (1947-1982), chairman of the Dept. of Astrophysical Sciences, and director of the Princeton University Observatory, Lyman Spitzer was also primarily responsible for founding the University's Plasma Physics Laboratory. His papers include design studies, technical plans and programs, various reports, correspondence, notes, and observations relating to his involvement in the development of the study of space astronomy at Princeton.

Consists of a collection compiled by American clergyman Stewart M. Robinson (Princeton Class of 1915), including photostats of sermons, letters, pamphlets, and communications to newspapers by clergymen in colonial America, which he used as research material for a proposed book entitled "The Political Thought of the Colonial Clergy."

This collection consists of papers of Antōnēs Dekavalles, a Greek poet, professor at Fairleigh Dickenson University, and editor of The Charioteer, A Review of Modern Greek Culture. Included are: correspondence, autograph manuscripts and typescripts, drafts, miscellaneous notes, and files related to his affiliated organizations.

Peyton Houston (Princeton Class of 1932) worked with the New York investment company Equity Corporation for forty years, while pursuing a career in poetry and freelance writing on the side. His papers include some of his poetry notebooks and drafts and manuscripts of his published works. The collection also contains his correspondence with family and friends, writers and publishers, and photocopied correspondence with Peter Yates. Some drafts of Yates' work and some personal memorabilia of Houston's complete the collection.

Consists of the correspondence and legal documents of John Biggs (Princeton Class of 1918) accumulated as executor and trustee of the estate of F. Scott Fitzgerald (Princeton Class of 1917).

This collection contains the manuscripts, correspondence, drawings, and other papers of twentieth-century Guatemalan author Augusto Monterroso, who spent most of his life as a writer in Mexico.

Contains notebooks and drafts of the Nicaraguan-born Salvadoran writer Claribel Alegría's poetry, articles and essays, novels, short stories, speeches, and translations. Also includes correspondence with publishers, family, and such writers as Mario Benedetti, Julio Cortázar, Juan Ramón Jiménez, Alfonso Quijada Urías, and Sergio Ramírez. Additionally, the collection contains photographs, audiovisual material, and writings of others on Alegría.

Contains selected papers, photographs, and memorabilia of Arthur H. Thornhill, Jr., Princeton Class of 1946, pertaining to his publishing career at Little, Brown and Company and his involvement in a variety of organizations and activities within the publishing industry. Also present in the collection is a limited amount of material from Thornhill's father, Arthur H. Thornhill, Sr., who preceded his son as president of Little, Brown and Company.

Saint-John Perse, pseudonym of Alexis Leger, was a major French poet, who won the Nobel Prize for Literature in 1960. Consists of working editorial files and author letters for the Pléiade edition of Leger's complete works, published by the French publisher Gallimard in 1972.

The Alejandro Rossi Papers consist of personal notebooks, manuscripts, correspondence with writers, academics, editors and artists, and printed material of the writer.

Consists of the papers (circa 1940s-2010s) of Mexican poet, essayist, novelist and short story writer, José Emilio Pacheco. Materials include notebooks, diaries and journals, writings, correspondence, printed materials, and other items.

Consists primarily of microfilm and transcripts of letters by American essayist and journalist H. L. Mencken, compiled by Princeton University historian and librarian Julian Boyd for his proposed book of Mencken's letters.

Consists of a group of family photographs, ephemera, and other papers belonging to the Flores and Viramontes families, two interconnected Mexican American families living in southwest Texas and New Mexico in the 20th century.

The Harold Nicolson Papers consists of papers of the English diplomat, journalist, and biographer Harold Nicolson (1886-1968). These papers primarily contain correspondence received by Nicolson, but there is also a large series of letters written by Nicolson to Richard Rumbold, as well as a few to others. Also included in the collection are manuscripts and/or working notes for four of Nicolson's published works. Furthermore, there is a small amount of papers of others, chiefly correspondence by and to Nicolson's wife, "Vita" (Victoria) Sackville-West.

Contains correspondence, photographs, memorabilia, and printed matter of American educator and librarian, Maurice Kelley (Princeton Class of 1934).

This collection consists of materials collected by Dr. James R. Vitelli, an English professor at Lafayette College, during his research on American literary critic Van Wyck Brooks and American book designer Elmer Adler.