National Museum of Nuclear Science & History
Manning worked for Stone and Webster Engineering Corporation.
Newsom worked at the 300 Area at Hanford during the Manhattan Project.
R. E. Breathitt worked for the Tennessee Eastman Corporation at the Y-12 Plant.
William Browne worked for the H. K. Ferguson Company.
Jean Marley O’Leary began working for General Leslie Groves in June 1941, when she was hired as his personal secretary.
