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.
Dorothy Wallace was a radiological physicist at the Chicago Met Lab during the Manhattan Project.
Leonard Czarniecki served as procurement planning and control officer with 9812th Technical Services Unit (Special Engineer Detachment) at Oak Ridge, TN, with the Y-12 Plant.
Robert Prunty (1921-2008) served in the Army at Los Alamos during the Manhattan Project, working as a machinist.
