National Museum of Nuclear Science & History
E. P. Jackson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
McCraw worked in the 200 West Area at Hanford during the Manhattan Project.
Ray Martin worked for the A. S. Schulman Electric Company.
Elbert Lowdermilk owned and operated the construction company that connected the Los Alamos laboratory to the rest of the country throughout World War II.
Cloyd Marvin had been drafted into the Army, interrupting his education at Haverford University, in 1943 and joined the Special Engineer Detachment as a technician third grade, later being assigned to Los Alamos National Labs in 1947.