National Museum of Nuclear Science & History
William Kann was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Prisda Rosen was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Tom Mulcahey was a staff worker at Los Alamos during the Manhattan Project.
Ralph Peters worked for the Tennessee Eastman Corporation at the Y-12 Plant.