National Museum of Nuclear Science & History
John Stiles worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John A. Simpson Jr. (1916-2000) was a distinguished American nuclear physicist and astrophysicist. Simpson was born on November 3, 1916 in Portland, Oregon.
Sergeant Ralph Belanger was an Assistant Flight Engineer assigned to the Bockscar’s original crew.
Margaret Ramsey Keck (1923-2016) was an American physicist. Soon after she graduated in 1945 from the University of Rochester with a degree in physics, Keck was hired by the Manhattan Project to work at Los Alamos.
Louis Henry Hempelmann (1914-1993) was Director of the Health Group at the Los Alamos site of the Manhattan Project.
