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. P. Sinclair worked for Clinton Laboratories at the X-10 Reactor.
E. F. Hutchinson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
R. A. Wentworth worked for Clinton Laboratories at the X-10 Reactor.