National Museum of Nuclear Science & History
Hughes worked for Stone and Webster Engineering Corporation.
Babcock worked in the United States Engineer District.
William Bunnell served at Los Alamos after the war from 1946 to 1948. He was a security guard and a member of the Military Police located at Los Alamos.
Preston Veltman was an American chemist. Veltman was born in Grand Rapids, Michigan. He studied at Michigan Technological University, and earned a Ph.