National Museum of Nuclear Science & History
E. C. Harshbarger worked for the Roane-Anderson Company.
Dorothy E. Carter was a lab technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. Warden worked for the Edenfield Electric Company.
Hart worked at the 300 Area at Hanford during the Manhattan Project.
Celeste Hand was a switchboard operator at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.