National Museum of Nuclear Science & History
K. R. Addington worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Thomas R. Williams was a laborer at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
C. Varuzzo worked for the United States Engineer District Office.
Philip C. McKenna was a laboratory assistant the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.