National Museum of Nuclear Science & History
John Horan worked for the United States Engineer District Office.
L. S. Baldin worked for the Edenfield Electric Company.
J. Webb worked for the Roane-Anderson Company.
Frank Oppenheimer (1912-1985) was an American particle physicist. In 1941, Oppenheimer began work at the University of California Radiation Laboratory, where he was a group leader in uranium isotope separation under Ernest Lawrence.
