Consists of selected papers of Desmond Harmsworth (1903-1990) and other members of the Harmsworth Family, including manuscripts, correspondence, and legal and business documents between Desmond Harmsworth Limited and The Nonesuch Press.

The Development and Resources Corporation (D&R), founded and directed by David E. Lilienthal, operated from 1955 to 1979 and was based in New York City. D&R provided regional economic development services to governments throughout the world, often with a focus on the development of water resources and the construction of dams. Its main project was the development of the Khuzestan region of Iran. D&R's records document its development projects and business operations and include correspondence, contracts, data and maps, proposals and reports, and collected materials about each country.

D. Hugh Peniston graduated from Princeton University in 1941. This collection includes his course notes and coursework along with his letters home during his undergraduate years.

A collection of manuscript and typescript drafts of and notebooks related to Eltit's works, personal and work-related correspondence mostly from the mid-1980s to 1990s, and other miscellaneous personal and work-related papers.

Consists of copies of diaries kept by Blom and his wife, Gertrude Duby Blom, from 1943 to 1959, while searching for Maya ruins in Chiapas, Mexico, in 14 volumes.

Dick Kazmaier was a Princeton University student and football player from 1948 to 1952. The Dick Kazmaier Papers include Kazmaier's course materials (class notes, exams, and thesis research material), as well as football team photographs, award certificates, and a scapbook of newspaper clipplings from 1949 to 1953.

The Dillon Gym Library was housed in Dillon Gym, which opened in 1947. Dillon Gym is now mainly used as the headquarters for the Campus Recreation program, and includes various administrative and varsity athletic coaches' offices. The majority of the collection is made up of published material such as athletic handbooks, rule guides and technique charts; athletic organization convention and conference reports; and university publications (sports schedules and programs, admissions material, faculty, staff, and alumni guides and fundraising publications). The collection contains several areas of focus—notably, material on women's sports at Princeton.

A collection of playbills mainly from the United States and Greece, as well as from Canada and Europe.

Consists of offprints relating to Modern Greek literature, poetry, art and archaeology, theater, history, and politics.

Mary Mapes Dodge was an author and editor of St. Nicholas magazine. This collection contains manuscripts, correspondence, financial records, and photographs of Mary Mapes Dodge, as well as an unfinished biography of her by Spencer Mapes.