National Museum of Nuclear Science & History
Joseph Hans worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Robert J. Valley served as a technical sergeant in the 393rd Bombardment Squadron. He was the tail gunner of the B-29 Full House, which served as a weather reconnaissance plane on the Hiroshima bombing mission, and the backup strike plane on Iwo Jima on the Nagasaki mission.
Bert Tolbert joined the Manhattan Project in 1944 while completing his PhD in Chemistry from the University of California at Berkeley.
