National Museum of Nuclear Science & History
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.
Staff Sergeant Edward F. O’Mara enlisted in the U.S. Army in 1942. Because of a blood condition, Army officials determined that he was not fit for combat duty.
Chien-Shiung Wu (1912-1997) was a Chinese American physicist. During the Manhattan Project, she worked at Columbia University, helping develop the process for separating uranium metal into U-235 and U-238 isotopes by gaseous diffusion.