National Museum of Nuclear Science & History
A. J. MacDonald worked for the Union Carbide & Carbon Corporation.
C. G. Jenkins worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Frances C. Micese was a laboratory technician in the Health Division of the University of Chicago Met Lab.
Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
