Stafford Leak Warren (1896-1981) was the director of the Atomic Energy Project at the University of Rochester (1943) and worked on the Manhattan Project. After the war, Warren came to UCLA to serve as dean of the School of Medicine (1947-62) and as vice-chancellor of the Health Sciences (1962-63). The collection consists of Warren's professional papers, documenting every major phase of his career. The bulk of the papers cover 1940 onward, including Warren's participation in the Manhattan Project and Operation Crossroads, and his subsequent involvement with issues and work with atomic bomb development and radiation effects.

Warren was born on June 19, 1896 in Maxwell City, New Mexico; BA, University of California at Berkeley, 1918; MA, MD, University of California San Francisco Medical School, 1922; postgraduate studies at Johns Hopkins University and Harvard, 1922-25; associate professor, then professor, University of Rochester, 1925-43; director, Atomic Energy Project, University of Rochester, 1943; worked on the Manhattan Project and was awarded the Distinguished Service Medal for his work on atomic bomb development; dean, UCLA School of Medicine, 1947-62; vice-chancellor, Health Sciences, UCLA, 1962-63; special assistant to U.S. President on mental retardation, 1963-65; professor emeritus, UCLA, 1965-81; presented Enrico Fermi Award by the Atomic Energy Commission, 1972; died on July 26, 1981 in Pacific Palisades, California.The above account was compiled from the following sources:

275 boxes (137.5 linear ft.) 5 cartons (5 linear ft.) 27 oversize boxes

Copyright to portions of this collection has been assigned to the UCLA Library, Department of Special Collections. The library can grant permission to publish for materials to which it holds the copyright. All requests for permission to publish or quote must be submitted in writing to the Manuscripts Librarian, Department of Special Collections.] Credit shall be given as follows: ©The Regents of the University of California on behalf of the UCLA Library, Department of Special Collections.

Operation Crossroads papers and Manhattan Project papers are available for access on 35 mm positive microfilm (in boxes 303-305) in Department of Special Collections. Originals, stored in boxes 57-83, not available for consultation due to fragile condition.