National Museum of Nuclear Science & History
A. A. Groppe worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
W. R. Studhalter worked for the United States Engineer District Office.
