National Museum of Nuclear Science & History
Sherman Winters was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Sam Weissman (1912-2007) was an American chemist. Weissman was born in South Bend, Indiana. He received a B.
Collins worked as a typist at the Y-12 plant at Oak Ridge 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.