The Records of the Association on American Indian Affairs document the corporate life of an influential and resilient player in the history of twentieth-century Native American advocacy. From its formation by non-Indians in New York in 1922 to its re-establishment in South Dakota in 1995 under a wholly Indian administration, the AAIA has defended the rights and promoted the welfare of Native Americans and, in this process, has shaped the views of their fellow citizens. The AAIA has waged innumerable battles over the years, touching on the material and spiritual well-being of Indians in every state of the Union: from the right of Native Americans to control their resources to their right to worship freely; from their right to federal trusteeship to their right to self-determination. The evolving nature of this struggle, in terms of conception and execution; the environment in which it was waged, both within and without the AAIA; the parade of men and women who figured in it; and the relationships among them can all be found in the abundant and insightful records which constitute these Records. The correspondence, minutes, reports, articles, clippings, and other documents in the collection, augmented by photographic and audiovisual material, represent a window not only on the AAIA but on the entities and personalities with which it interacted. While its vision has co-existed with others, and while it has been far from alone in its contribution to Indian life, no consideration of twentieth-century Native American affairs can disregard its arduous and, for the most part, fruitful work.

Consists of personal papers of American astronomer Henry Norris Russell (Princeton Class of 1897), including notes kept by Russell as a student at Princeton (1894-1898), lecture notes when a professor at Princeton, and working notes on scientific and military problems.

G. Edward Pendray was an early proponent of rocket power and space flight and co-founder Pendray and Company, a prominent public relations firm. The G. Edward Pendray Papers consist of correspondence, notes, memoranda, drafts, reports, photographs, and printed material related to Pendray's career in public relations and his life-long interest and involvement in aeronautics and astronautics.

David Lawrence, Princeton Class of 1910, was an American magazine and news service founder, editor, columnist, and author. This collection contains papers of Lawrence, including correspondence with notable twentieth century figures, articles, speeches, correspondent dispatches, radio broadcast transcripts, and manuscripts for several books.

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.

An open collection of examples of British sigillography (matrices, royal charters with seals, seal impressions, and related material), collected by Bruce C. Willsie, Class of 1986.

The papers comprise documents relating to all periods of the life of Kurt Gödel, foremost mathematical logician of the twentieth century, including scientific correspondence, notebooks, drafts, unpublished manuscripts, academic, legal, and financial records, and all manner of loose notes and memoranda.

The Delafields were avid collectors of family history and family-related memorabilia in the Hudson River Valley region of New York state. This collection consists of the papers of the Delafield family and related families, most prominently the Livingstons, containing both personal papers and papers collected for their genealogical and historical significance.

The Robert H. Taylor Collection consists of over 4,000 3,300 manuscripts illustrating in their wide range the scope of English literature from the fourteenth century to the 1940s. This finding aid focuses on the modern manuscripts, both bound and unbound, in the collection, which is designated "RTC01" within the Manuscripts Division of the Special Collections Department of the Princeton University Library.

David Lilienthal served on the Wisconsin Public Service Commission (1923-1932), as a member of the board of directors (1933-1941) and then chairman (1941-1946) of the Tennessee Valley Authority (TVA), as first chairman (1946-1950) of the Atomic Energy Commission, and, later, in private business as an industrial consultant and chairman (1955) of the Development and Resources Corporation, which was involved with the Khuzestan Program in Iran. This collection consists of the papers of Lilienthal spanning his entire career, including correspondence, reports, articles, speeches, and printed matter.