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.
Robert Mackenzie “Bob” Underhill (1893-1988) was a finance officer for the University of California during the Manhattan Project.
Calhoun worked at the 100-B Area at Hanford during the Manhattan Project.
