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.
C. M. Nelson worked for Clinton Laboratories at the X-10 Reactor.
A. K. Ericson worked at the 100-F Area at Hanford during the Manhattan Project.
S. A. Hindley worked for the J.A. Jones Construction Company.