National Museum of Nuclear Science & History
Douglas Rouse worked for the United States Engineer District Office.
T. Meadows worked for the Midwest Piping and Supply Company.
Alvin Graves (1909-1965) was an American physicist. Graves was invited to join the University of Chicago Metallurgical Laboratory and in 1942 he accepted the position and became a member of the Manhattan Project.
Helene Smith was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.