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National Museum of Nuclear Science & History

Andrew Rubis served in the First Ordnance Squadron.

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Lester R. Barton

K-25 Plant

Attended Lehigh University.

George Kistiakowsky

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George Kistiakowsky (1900-1982) was a Ukrainian-American physical chemist.  He joined the Manhattan Project in late January 1944, leaving his role as chief of the National Defense Research Committee’s Explosives Division.

Richard C. Hopkins

K-25 Plant

Attended Lehigh University.

Warren Nyer

Hanford, WA

Warren Nyer (1921-2016) was an American physicist. Nyer was nineteen and studying physics at the University of Chicago when he was hired as a research assistant with the Office of Scientific Research and Development, an early part of the bomb-building program.