National Museum of Nuclear Science & History
J. R. Thompson worked for the J.A. Jones Construction Company.
John C. Hansen served as a Master Sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Laggin’ Dragon.
Jean Marley O’Leary began working for General Leslie Groves in June 1941, when she was hired as his personal secretary.
L. C. Manley worked for the Edenfield Electric Company.
John Crawford was a physicist and research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.