National Museum of Nuclear Science & History
Bales worked for Stone and Webster Engineering Corporation.
Clarence Signaigo was a laboratory helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
James J. Nickson was a medical doctor and Section Chief of H-III Medical Industrial Hazards and Health Physics in the Health Division at the University of Chicago Met Lab.
Doris Allen (1915-2013) was a nurse in the hospital at Los Alamos during the Manhattan Project. Born in Decatur, Illinois, Allen graduated from the Washington University School of Nursing in 1943.
