National Museum of Nuclear Science & History
Rufus King worked for the H. K. Ferguson Company.
Fred D. Butler served as a private first class in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Laggin’ Dragon.
M. K. Walsh worked for the Roane-Anderson Company.
William S. Johnston was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
