National Museum of Nuclear Science & History
R. F. Kocher worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Bernard West was a civilian worker at the DuPont Chamberworks facility in Deepwater, New Jersey.
Holl worked for Stone and Webster Engineering Corporation.
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.
Charles E. Kircher III (1908-1972) was a chemical engineer who worked on the Manhattan Project for DuPont.