Consists of selected papers of American historian Charles Homer Haskins reflecting his academic career and government appointments.

Consists of 74 volumes of diaries, letters, reports, reminiscences, and other writings in typescript form, accompanied by clippings, photographs, designs, and memorabilia relating to Charles Mason Remey (1874-1974) and the Remey and Mason families.

Consists of correspondence between Charles Shipman and various artists and institutions, most notably George deForest Brush and Elliott Dangerfield.

Consists of the papers of Princeton chemistry professor Charles Phelps Smyth.

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.

American art historian Charles Rufus Morey (1877-1955) served as professor in the Department of Art and Archaeology at Princeton University from 1918-1945 and as chairman from 1924-1945. The collection includes Morey's drafts for catalogues, mainly at the Museo Sacro and Museo Cristiano; photographs; professional papers, lecture and course notes; and drafts, extracts and contents of vertical files.

Consists of Xerox copies of works and correspondence by William Cowper collected by Princeton professor and scholar Charles Ryskamp, as well as correspondence, notebooks, and miscellaneous material of Neilson Campbell Hannay, another Cowper scholar and collector.

Consists of letters and miscellanea of the educator, merchant, and first secretary of the Continental Congress Charles Thomson (1729-1824).

General Charles T. Lanham (1902-1978), a decorated WWII General and friend of author Ernest Hemingway, was an accomplished author, trainer, and after retiring from the military had a successful second career as a public relations executive. The Charles T. Lanham Papers document the general's WWII and post war military service and his private sector employment with several corporations. The papers contain correspondence, scrapbooks, photographs, journals, speeches, and legal documents.

American Charles William White wrote historical novels about artists and writers under the pen name of "Max White." Active as a historical fiction writer primarily in the 1930s through 1950s, White traveled in the same social circles as Gertrude Stein and Alice B. Toklas. The collection consists of manuscripts and correspondence of Charles William White ("Max White"), including correspondence with Alice B. Toklas and Gertrude Stein.