National Museum of Nuclear Science & History
Ruska worked for Stone and Webster Engineering Corporation.
Joel S. Canby served in the 509th Headquarters and Base Services Squadron.
Clifford E. Willison served in the 1027th Air Material Squadron.
Roscoe Charles Wilson was a United States Army Air Forces Officer. At the rank of Colonel he was the overall Project Office to the Manhattan Engineering District from June 1943 to December 1944.
John Raper worked for Clinton Laboratories at the X-10 Reactor.