National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Leon O. Jacobson was Associate Director of the Health Division and Section Chief of H-I, Clinical Medicine and Medical Research, at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Conrad worked in the United States Engineer District Office.
Henry Warwick worked for the A. S. Schulman Electric Company.
Joseph Polakowski served in the 603rd Air Engineering Squadron.
