National Museum of Nuclear Science & History
Marietta C. Moore was a technician in the Health Division at the University of Chicago Met Lab. She signed the Szilard petition.
M. N. Andrews worked for the J.A. Jones Construction Company.
Karl Ziegler Morgan was an American health physicist who served as Director of Health Physics at Oak Ridge from 1944 to 1972.
A. C. Blackman worked for the Edenfield Electric Company.
