National Museum of Nuclear Science & History
R. F. Ridgeway worked for the Roane-Anderson Company.
Carrie Johnson was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. J. Murphy worked for the United States Engineer District Office.
J. Midkiff worked for the Edenfield Electric Company.
Dodson Marrs worked in carpentry and concrete work at Oak Ridge, Tennessee as a part of the Manhattan Project.
