National Museum of Nuclear Science & History
Hubbard worked for Stone and Webster Engineering Corporation.
R. W. McElwee worked for the Union Carbide & Carbon Corporation.
Barger worked in the United States Engineer District Office.
Irving Bubos was a research assistant in the Metallurgical Laboratory (“Met Lab”) at the University of Chicago during the Manhattan Project.
C. W. Danford worked at the 100-D Area at Hanford during the Manhattan Project.