National Museum of Nuclear Science & History
C. L. McCallum worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Joanna Brumfiel was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Robert van Gemert worked in procurement and supply for Los Alamos during the Manhattan Project. He was also involved in organizing preparations for the Trinity Test.
William W. Atterson lived in Oak Ridge Tennessee and worked at the Y-12 plant where he was in charge of keeping the machine’s working and making sure the work place was running smoothly.