National Museum of Nuclear Science & History
E. C. Armstrong worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Thomas O. Jones volunteered to join the Army before the start of WWII. As the war began to unfold in Europe, Jones was placed in a sub-organization of the Army called the Counterintelligence Corps.
Jean Marley O’Leary began working for General Leslie Groves in June 1941, when she was hired as his personal secretary.