In the Fall of 1998, President Harold T. Shapiro, recognizing that many groups, individuals, and organizations were interested in planning events and projects related to the 20th anniversary of undergraduate coeducation, appointed a Steering Committee to coordinate and help support these activities. These records document the planning, implementation, and assessment of the actions of the Steering Committee.

Consists chiefly of letters by Alfred Thayer Mahan to his publisher regarding his writings about United States naval history. Mahan was a U.S. naval officer in the Civil War, and his work on the importance of adequate navies and merchant marines influenced the policies and philosophies of national leaders across the globe, including those of the 26th president of the United States, Theodore Roosevelt.

Consists of research notes, correspondence, photographs, and drafts for three articles by Howard C. Rice (1904-1980), published in the Princeton University Library Chronicle (autumn 1951, summer 1959, spring 1971), concerning the French engraver, Charles Balthazar Julien Fevret de Saint-Mémin (1770-1852)

Emmet John Hughes (1920-1982) was a journalist and speechwriter. The collection is primarily composed of drafts, research files, reviews, and other materials pertaining to various books and articles written by Hughes. The collection also documents Hughes's work as a speechwriter for Dwight D. Eisenhower in the presidential campaigns of 1952 and 1956 and the first year of Eisenhower's presidency, as well as his role as a political advisor and speechwriter for Governor Nelson Rockefeller's 1968 presidential bid.

Consists of selected correspondence and documents from the state of Pennsylvania, the bulk of which date from the eighteenth century. Pennsylvania was founded by William Penn in 1681 in order to establish a safe haven for the English Quakers, who were being persecuted in England at the time.

Lyman B. Kirkpatrick, Jr. served with the Central Intelligence Agency (CIA) from its inception in 1947 until 1965. The papers document Kirkpatrick's career at the CIA, including his role as inspector general during the Bay of Pigs invasion, as well as his service in the U.S. Army and Office of Strategic Services during World War II, and his time as a professor of political science at Brown University.

Karl S. Twitchell was an American mining engineer who conducted extensive surveys in the Middle East, Europe, and South America between 1915 and the 1950s. His papers document the span of his career, particularly his interest in the Middle East, and include correspondence, journals, notes, reports, writings, topical files, photographs, and maps. Personal documents and correspondence with family and associates are also contained.

Consists primarily of documents and newspaper clippings about Civil War veteran George Russell Brown and college essays of his son, Princeton student George Russell Brown, Jr.

Consists of correspondence, photographs, and printed matter concerning the Baron and Baroness Hyde de Neuville.

The William W. Lockwood Papers document the American Institute of Pacific Relations and Lockwood's activities within the organization during the McCarthy era. A significant amount of the collection concerns the investigation of the Institute of Pacific Relations by Senators Joseph McCarthy and Pat McCarran. The collection also documents U.S.-Far East relations, particularly U.S.-Japanese trade and the Japanese textile industry.