National Museum of Nuclear Science & History
H. R. Muldoon worked for the Union Carbide & Carbon Corporation.
Shad Marshall worked at Los Alamos on the Manhattan Project. He was married to Natalie Marshall, who also worked on the 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.