National Museum of Nuclear Science & History
W. Q. Smith worked for Clinton Laboratories at the X-10 Reactor.
Bradley worked at the 300 Area at Hanford during the Manhattan Project.
Breadhead worked at Los Alamos during the Manhattan Project.
Dr. Karl Larsen worked at Massachusetts Institute of Technology during the Manahattan Project. While there, he conducted heavy-water research by spectrum analysis, which was one of the prerequisites to the early atomic bombs.