National Museum of Nuclear Science & History
M. K. Walker worked for the Fercleve Corporation.
Edward P. Hayes was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ruth A. Casler was a lab technician in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Eunice Hite worked for the United States Engineer District Office.
