National Museum of Nuclear Science & History
Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
J. R. Pierson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Stanley Krzyck was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Brandt was at Los Alamos during the Manhattan Project.
E. E. Gilcrease worked for the Tennessee Eastman Corporation at the Y-12 Plant.