National Museum of Nuclear Science & History
Clarence Johnson (1912-2012) was a Canadian-born chemical engineer. He was born in Alberta, Canada on November 24, 1912 to Swedish migrant parents.
Harper worked for Stone and Webster Engineering Corporation.
Carlie Gott worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Louis Henry Hempelmann (1914-1993) was Director of the Health Group at the Los Alamos site of the Manhattan Project.
