National Museum of Nuclear Science & History
George Feldman worked for the Roane-Anderson Company.
Kreitzberger worked in the 200 East Area at Hanford during the Manhattan Project.
Horace Mahorney was a chemical engineer at the Y-12 plant in Oak Ridge, Tennessee. From September 1943 to November 1945, Mahorney was an operator of the mass spectrometer with Dr.
Helene Smith was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
John Oathaot was a staff worker at Los Alamos during the Manhattan Project.