National Museum of Nuclear Science & History
George Cowan joined the Manhattan Project in 1942 at the Met Lab as a chemist for Enrico Fermi’s group, and also worked for Columbia University.
Jas Pryor worked for the J.A. Jones Construction Company.
Kermit K. Beahan served as a captain in the 393rd Bombardment Squadron. He was the bombardier on The Great Artiste and flew on the Hiroshima mission.
Helen Williams was a stenographer and clerk at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.