National Museum of Nuclear Science & History
H. B. Smith worked for the United States Engineer District Office.
Roy W. Carlson was an engineer. He worked on the Manhattan Project at Los Alamos and the University of California, Berkeley, as a member of the Explosives Division and Group X-2A.
Robert Hackett worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Carr worked at the 200 West Area at Hanford during the Manhattan Project.
Helen D. Thomson was in the Army Group at the Metallurgical Laboratory in Chicago during the Manhattan Project.