George F. Kennan (1904-2005) was a diplomat and a historian, noted especially for his influence on United States policy towards the Soviet Union during the Cold War and for his scholarly expertise in the areas of Russian history and foreign policy. Kennan's papers document his career as a scholar at the Institute for Advanced Study and his time in the Foreign Service, and include his correspondence files, published and unpublished writings, and personal files.

The Adlai E. Stevenson Papers document the public life of Adlai Stevenson (1900-1965), governor of Illinois, Democratic presidential candidate, and United Nations ambassador. The collection contains correspondence, speeches, writings, campaign materials, subject files, United Nations materials, personal files, photographs, and audiovisual materials, illuminating Stevenson's career in law, politics, and diplomacy, primarily from his first presidential campaign until his death in 1965.

Thomas Burnside Morris graduated from New York University in 1861 with a degree in civil engineering. He was a chief engineer of the Long Island Railroad, 1863; a division chief of the Panama Railroad, 1864-1865; a division chief of the Union Pacific Railroad, 1867-1869; and a division chief of the Northern Pacific Railroad, 1870-1874. He died in Oakland, California, on November 8, 1885. The collection consists primarily of material relating to Morris's role in the construction of the Union Pacific Railroad and the Northern Pacific Railroad.

The Historical Photograph Collection: Individuals series consists of photographs of faculty, administration, trustees, staff, students, and notable visitors to Princeton University.

Charles Ruas is an American author, interviewer, editor, literary and art critic, and French translator, who served as the Director of the Drama and Literature Department for New York's Pacifica radio station WBAI-FM in the late 1970s and interviewed writers for radio broadcast and print, including Toni Morrison, Michel Foucault, Carlos Fuentes, Eudora Welty, Susan Sontag, Truman Capote, Buckminster Fuller, Andy Warhol, Mario Vargas Llosa, and others. Included are photographs and documents on Allen Ginsberg and William Burroughs, the St. Marks poetry project, and avant-garde artists and performers. The papers include transcripts and audiocassette tapes of Ruas's interviews with authors and artists, as well as typescripts and galleys of work by writers Ruas edited, including Marguerite Young, and some related photographs, notes, recordings, and correspondence. There are also some translations and other writings by Charles Ruas, as well as a collection of family photographs and papers documenting the history of his family in Tianjin, China, from the 1860s through the mid-20th century.

John Foster Dulles (1888-1959), the fifty-third Secretary of State of the United States for President Dwight D. Eisenhower, had a long and distinguished public career with significant impact upon the formulation of United States foreign policies. He was especially involved with efforts to establish world peace after World War I, the role of the United States in world governance, and Cold War relations between the United States and the Soviet Union. The Dulles papers document his entire public career and his influence on the formation of United States foreign policy, especially for the period when he was Secretary of State, and include his correspondence files, as well as his writings, reports, and memorabilia.