National Museum of Nuclear Science & History
Hays worked in the United States Engineer District Office
Mary Kelly was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) 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.
Ratterman worked at the 200 East area at Hanford during the Manhattan Project.
