Consists of correspondence, original sketches by Yanni Posnakoff, personal documents, photographs, exhibition catalogs, and printed material regarding the life and work of the artist in the United States.

The collection consists of personal papers of Kimon Friar, one of the first and most prolific translators of modern Greek poetry into English. His work helped bring modern Greek literature to the attention of the international public.

Juan Gelman (1930-2014) was an Argentine poet, translator, journalist, and human rights activist. His papers contain handwritten, typewritten, and printouts of his writings, correspondence, notes, research files, awards and certificates, and personal photographs. A significant portion of the papers feature analog and born-digital investigative files relating to human rights investigations and campaigns Gelman conducted with his spouse, Mara La Madrid, on the forced kidnapping and death of his son and pregnant daughter-in-law, Marcelo Gelman and María Claudia García Irureta Goyena. Also included are files on his search to find his missing granddaughter, Macarena Gelman. Additional materials consist of original drafts and documents related to Juan Gelman's writing; letters; publishing contracts; documents about Juan Gelman's work as a translator; materials related to the campaign to lift the ban on Juan Gelman's entry into Argentina and his return to Buenos Aires; newspaper and magazine clippings related to the ban on Juan Gelman's entry into Argentina, as well as celebrating his return; materials related to Marcelo and Paulina, including photographs of Gelman and the family; works by other writers; and audio cassettes.

The Miscellaneous Dance Files Collection contains printed programs, souvenir programs, clippings, and reviews of various ballet companies and choreographers.

The Jimmy Stewart Collection consists of newspaper and magazine clippings about the life and career of American actor, James Stewart (Princeton Class of 1932). Also included in the collection are film stills and other photographs.

Consists of a complete duplicate archive of engineering drawings, calculations, letters, photographs, and various writings that document the numerous projects of Swiss civil engineer Robert Maillart.