National Museum of Nuclear Science & History
Cass worked for Stone and Webster Engineering Corporation.
Norene Mann was a secretary at the University of Chicago Met Lab. She worked for Nobel laureate James Franck, but often also acted as a secretary for Leo Szilard.
E. S. Ethridge worked for the Tennessee Eastman Corporation at the Y-12 Plant.
W. O. Lawrence worked for the J.A. Jones Construction Company.
