National Museum of Nuclear Science & History
Caldwell worked in the United States Engineer District Office.
Robert Martens was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
William T. Hulse, Jr. was with the 393rd Bombardment Squadron of the 509th Composite Group at Wendover Airfield in Utah and on Tinian Island in the Pacific from 1944 to 1945.
L. M. Jacobs worked for the Comstock-Bryant Electric Company.
