National Museum of Nuclear Science & History
Henry J. Wollweber was a guard at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Edna K. Marks was a junior biologist and technician in the Health Division at the University of Chicago Met Lab.
J. E. Mason worked for the Roane-Anderson Company.
C. B. Reynolds worked for the Tennessee Eastman Corporation at the Y-12 Plant.