National Museum of Nuclear Science & History
M. C. Barto worked for the Roane-Anderson Company.
Robert E. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. W. Webb served in the 390th Air Service Group.
C. Cannon was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
