National Museum of Nuclear Science & History
John Sullivan was a staff worker at Los Alamos during the Manhattan Project.
R. K. Dean worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Smith worked at the 100-D Area at Hanford 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.