National Museum of Nuclear Science & History
Sayers worked for Stone and Webster Engineering Corporation.
Leroy Jackson was transferred into the Manhattan District, the branch of the United States Army Corps of Engineers tasked with overseeing the construction of critical Manhattan Project sites, shortly after its formation in 1942.
L. W. Nordheim worked for Clinton Laboratories at the X-10 Reactor.
John Milham worked for the H. K. Ferguson Company.