Consists of correspondence and documents of Jonathan Belcher, dating from his early years in Massachusetts to his days as colonial governor of New Jersey.

Consists (primarily) of manuscripts of works by Handel and his contemporaries but also of correspondence and subject files gathered by James S. Hall, the English surgeon who collected most of the manuscripts.

The John Van Antwerp MacMurray Papers describe the public and personal lives of John Van Antwerp MacMurray (1881-1960), diplomat and specialist in Far Eastern Affairs, and his father, Junius Wilson MacMurray (1843-1898).

William Byler was Executive Director of the Association on American Indian Affairs (AAIA) from 1962 to 1980. After leaving AAIA, Byler continued advocating for the Native American community, first at Gerard, Byler and Associates and later at William Byler Associates. Byler's papers document his work on behalf of the Native American community after leaving AAIA. The papers include legal memoranda, draft and final agreements between Native American communities and companies or government agencies, and court documents, as well as topical files of related legislation and reports on the issues.

The collection contains manuscripts related to four generations of the Blanco White family, spanning two centuries: including works, diaries, correspondence, documents, accounts and expense records, and printed material. Joseph Blanco White, the Spanish-English writer and religious figure, remains the focus of the collection; however, his brother Fernando, a politician and intellectual of 19th-century Seville, also accounts for a substantial part of the material. Of particular interest are autograph manuscripts of several of Joseph's literary efforts, as well as other genealogical material relating to the Blanco White family.

This collection consists of materials collected by the law firm of McCarter & English of Newark, New Jersey in connection with representation of the Iowa, Sac and Fox, Otoe and Missouria, and Omaha tribes before the United States Indian Claims Commission between 1958 and 1970. The records document the cases; briefs, findings of fact, valuations, reports and orders are included. More significantly, the records include a vast storehouse of evidentiary documentation on the history of these tribes and others, much of it dating to the early nineteenth century.

Albert O. Hirschman (1915- ) was a leading scholar in the field of economic development whose work focused on Latin America but encompassed the globe. He was a professor at Yale, Columbia, Harvard, and the Institute for Advanced Study in Princeton, New Jersey. Hirschman's papers document his scholarship on economic development and his academic career and include his correspondence written while he was at the Institute for Advanced Study, his writings, and his research notes and materials, especially related to his work in Latin America and for the World Bank.

Consists of an assembled collection of correspondence of playwrights, authors, actors and actresses, and theater managers, and other manuscript materials relating to American and English theater from the 1720s through the 1970s.

Consists of correspondence, documents, photographs, printed material, and miscellanea of three generations of the Osborn and Dodge families.

The Grounds and Buildings Series of the Historical Photograph Collection contains photographs of the grounds and buildings owned by Princeton University. The photographs date from the late 1850s to the present, with the bulk of the photographs dating from the 1870s to the 1940s. Many of these photographs have been digitized and are searchable in Digital PUL.