National Museum of Nuclear Science & History
Walter Anderson worked for the A. S. Schulman Electric Company.
Jas Howard worked for the United States Engineer District Office.
Marvin Tetenbaum was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
John J. Norton was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Creedon worked for Stone and Webster Engineering Corporation.
