The Ruth Moore collection consists of manuscripts, correspondence, printed material, notebooks and scrapbooks.
Manuscripts in the collection include drafts and notes for several of her books. Titles include Man, Time, and Fossils (1953), Charles Darwin: a Great Life in Brief (1955), The Earth We Live On: The Story of Geological Discovery (1956), The Coil of Life (1961), and Niels Bohr: The Man, His Science, and the World They Changed (1966).
Correspondence in the collection dates from 1952 to 1963. Correspondents include friends and scientists, notably Edward Bullard, Heinz Fraenkel-Conrat, Arthur Kornberg, Daniel Mazia, Hermann Joseph Muller, Francis J. Pettijohn, and John T. Wilson.
Printed material in the collection includes magazines, newspapers, and articles; many magazines contain articles by Moore. Several issues of the Chicago Sun from 1945 are also included. Reviews and publicity for Moore’s various books are also included.
Notebooks in the collection include several notebooks containing research notes. Scrapbooks in the collection include several scrapbooks containing newspaper clippings from 1934 to 1951.