National Museum of Nuclear Science & History
MacDonald worked for Stone and Webster Engineering Corporation.
Howard Gest worked for Clinton Laboratories at the X-10 Reactor. Gest was one of the scientists who signed Leo Szilard’s petition against the use of the atomic bomb.
Eleanor Caldwell was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Marshall worked in the 300 Area at Hanford during the Manhattan Project.
Julia Wynne was a chemist in the Y-12 Plant in Oak Ridge, Tennessee from June 1944 through the end of the war.
