National Museum of Nuclear Science & History
Charles Helmers worked for the J.A. Jones Construction Company.
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.
Caldwell worked in the United States Engineer District Office.
Mario A. Litterio served as a PFC in the 393rd Bombardment Squadron. He was a member of the ground crew on the B-29 Full House.
