LBL Archives and Records Office Nuclear Testing and Fallout Records Survey 5. eeeenon of Records . Personal Name(s) Reference Joseph G. Hamilton. Unknown until further review. j. Organizational Name(s) Reference MED Project 48A Crocker Laboratory U.c. Radiation Laboratory Metallurgical Laboratory. Los Alamos Scientific Laboratory Clinton (Oak Ridge) Laboratory University of Chicago. 6. Test Data a. Test Operation Trinity; Operation Crossroad. | b. Location .- wo . Berkeley; Los Alamos; Chicago; Knoxville, TN. c. Assignment Project NDP - 48A; Projects Gabriel & Rand. d. Organizational Responsibilities Defense Research. After WWII, Dr. Hamilton's group participated in the. Bikini tests of 1946 and advised the U.S. Navy on the decontamination of ships exposed to nuclear explosives. Hamilton became chair of the Advisory Committee on Radioactive Warfare, U.S. Army Chemical-Corps. The ‘Crocker Lab e. Staff Position/Responsibilities studied the biological effects of fission - products and radioactive aerosols. Directed, conducted, and reported on radiological studies of exposed biological systems under MED/AEC Contract NDP - 48A and National Defense Research Committee Contracts. Notes Attached are photocopies of correspondence concerning the search for location and transfer of Joseph G. Hamilton's records. Selected letters found in the John H. Lawrence Papers, Ernest O. Lawrence Pavers, and Archives and Records accession record. the

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