National Museum of Nuclear Science & History
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.
Ralph worked at the 300 Area at Hanford during the Manhattan Project.
Ralph Alexander Gardner-Chavis (1922-) is a chemist and pioneer of hard plastics who worked at the University of Chicago’s Met Lab during the Manhattan Project.
Eleanor Caldwell was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
