Clinton A. Decker traveled to Russia as part of the American Advisory Commission to Russia of Railway Experts (1917) and later became a member of the Inter-Allied Technical Board (1919-1922). The collection contains personal and business correspondence and photographs documenting Decker's travels in Russia, China, and Japan.

The papers of William A. Eddy (1896-1962), educator, diplomat, minister to Saudi Arabia, intelligence agent, and college president, focus on his presidency of Hobart College (1936-1941), his work in U.S. - Middle East policy, and his family life in the period from 1917-1962. The holdings of his personal and family correspondence is extensive. The collection contains all correspondence from his term as president of Hobart College, 1936-1941. Many military documents are included, especially in the years 1941-1946 (the planning of the North African landings, the FDR/Ibn Saud meeting, the Treaty of the Yemen). There are many geneological papers and letters from Eddy's relatives concerning American missionary work in the Middle East. There are numerous publications concerning 18th C. English literature, religious and civic duties, U.S. Foreign policy re Israel and the Arabs, and sociological accounts of the Middle East. The collection is composed of personal/professional correspondence, documents, diaries and notebooks, addresses, publications, manuscripts of Eddy's books and articles (including unpublished MSs), scrapbooks, photographs, negatives, and memorabilia.

These pamphlets were collected by the Princeton University Library starting from the outbreak of World War I. The collection contains pamphlets published in Europe during and immediately after World War I. They cover a broad range of topics including the economy, the press, the military, arms, territorial disputes, and others. The collection also includes speeches, sermons, bulletins, calendars, and songbooks.

The Papers of Woodrow Wilson Project, co-sponsored by the Woodrow Wilson Foundation and Princeton University, was a successful project to publish material generated by and influencing Woodrow Wilson; the 35 year project resulted in an acclaimed 69 volume set. The records of the Papers of Woodrow Wilson Project, compiled by chief editor Arthur S. Link and his staff, document the life and times of the former Princeton University president, governor of New Jersey, and president of the United States, Woodrow Wilson, as well as the project to bring together documentation by and about Wilson.

Consists of papers of Mario Vitti, an Italian author, translator, and educator specializing in modern Greek literature. Included are letters (1947-1992) from Greek, Turkish, Italian, and other poets and authors, and manuscripts of Greek authors collected by Vitti.

The records of the Physics Department document the scientific and teaching activities of Princeton University physicists from 1909 to 1962. While routine activities such as the hiring of faculty and the education of graduate and undergraduate students are recorded, these records also detail the Department's activities in early studies of theoretical physics, as well as its participation in World War II research activities. There is also a small amount of material that documents Milton White's efforts toward builing the cyclotron (1936).

Dean Mathey (d. 1972), Class of 1912, was a member of the Board of Trustees and an ardent supporter of the University. The collection documents Mathey's familial relationships, service to Princeton, tennis career and other activities from his undergraduate days to the end of his life.

This collection contains records relating to Princeton University presidents from Jonathan Dickinson, who served in this capacity from 1746 to 1747, to Harold W. Dodds, whose tenure spanned the period from 1933 to 1957. It brings together both primary and secondary materials pertaining to individual presidents as well as the office of the president itself. The Princeton University Presidents' Records document the lives and accomplishments of each president with varying completeness, as well as the functions of their office.

Consists primarily of letters (approximately 500) from contemporaries of English editor and publisher Sir Israel Gollancz.

H. R. Hays was a writer, anthropologist, and educator. The collection contains his correspondence with ten Latin American writers and poets, primarily about literary and research issues. Also included are typescripts of an article about Jorge Carrera Andrade's poetry and Antenor Orrego's prologue to Trilce (1922).