The Hyatt and Mayer Collection consists primarily of correspondence between Alfred Marshall Mayor (1836-1897), physicist, his son Alfred Goldsborough Mayor (1868-1922), biologist, and Alpheus Hyatt (1838-1902), zoologist and paleontologist, and colleagues in their various fields. Also included are eight volumes of photographs taken by Alfred M. Mayer during scientific expeditions to the islands of the Pacific Ocean.

The Laurence Hutton Photograph Albums consists of several hundred photographs and numerous portraits of prominent 19th-century artists and literary, political, and historical figures, compiled by editor and essayist Laurence Hutton.

Consists of works, correspondence, photographs, a journal (1962), maps, computer tapes, and printed matter of Puleston, a professor of anthropology at the University of Minnesota.

Consists of papers of Nikos Kavvadias, a Greek poet who spent most of his life traveling the world as a wireless operator on ocean freighters.

Contains material relating to Hemingway's income tax preparations for the years 1940-1945.

Consists of the typed manuscript, with holograph corrections, of historian Karoly Lonyay's biography Rudolph, the Tragedy of Mayerling (1949), which centered around the 1889 suicidal death of the heir to the Austrian crown.

Consists of selected family papers of Princeton resident and historian Henry Ewing Hale.

Consists of personal and professional correspondence between Lucius Hopkins Miller (Princeton Class of 1897), a professor in Princeton's Department of Religion, and Princeton colleagues, including Woodrow Wilson, fellow educators at other institutions, and publishers, such as Henry Holt.

Consists of 167 letters by American poet William Meredith to his intimate friend Robert Drew from 1949 to 1972, postmarked Princeton, N.J., New London, Conn., and other places.

Consists of papers gathered and generated by Ruth E. and Edward M. Brecher while researching the life of William Francis Mannix (1870?-1920), a journalist, soldier of fortune, grafter, and literary forger, for a proposed biography that was never completed. Included are manuscript drafts, correspondence and documents relating to Mannix's background, psychopathic personalities, and literary forgeries.