National Museum of Nuclear Science & History
C. P. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Robert S. Coles was a research associate at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
Haydn Jones was a research assistant in the Physics Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Katherine Gnjec was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.