National Museum of Nuclear Science & History
E. H. Frye worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Nicklin worked for the United States Engineer District Office.
Ernest Mekanas was a member of the Provisional Engineering Detachment at Los Alamos. Mekanas was in Los Alamos from 1943 to 1945, working primarily at the post office.
H. O. Arnold worked for the Kellex Corporation at the K-25 Plant.
Cash worked as an operator at the Y-12 plant at Oak Ridge during the Manhattan Project.