National Museum of Nuclear Science & History
Michael Cefola was an American chemist and a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Mildred Wagoner worked for the Roane-Anderson Company.
Arnold graduated from Northwestern University in 1941 with a B.S. degree in Biology and a minor in Chemistry.
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.