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.
L. Z. Dolan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Douglas Meigs was a civilian chemical engineer working for H. K. Ferguson, the company that built and operated the S-50 Thermal Diffusion facility at Oak Ridge.
William Rubinson was a chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.