National Museum of Nuclear Science & History
C. H. Pearson worked for the Kellex Corporation at the K-25 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.
William Rose worked as a welder at the Allis-Chalmers Manufacturing Company in West Allis, Wisconsin from November 1943 to April 1946.