National Museum of Nuclear Science & History
W. A. Cone worked for the J.A. Jones Construction Company.
Reynolds worked for Stone and Webster Engineering Corporation.
Robert Martens was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
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.