National Museum of Nuclear Science & History
Dellis Caho was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Stanley Stewart was the Contracting Officer at Los Alamos during the Manhattan Project. After the bombings of Hiroshima and Nagasaki, Stewart wrote, “The security restrictions on our part of the work [at Los Alamos] have been more rigid than than on any other portion of the entire Manhattan Project.
Fred Hughes was a Reactor Operator at the Hanford B Reactor from 1943 through the end of the war. He worked for the DuPont Company, who transferred him from Prior, Oklahoma to Hanford in 1943.