National Museum of Nuclear Science & History
George I. Ray worked for the G.G. Ray Company.
Egbert Sudlow installed phone systems at all of the major facilities at Oak Ridge, Tennessee.
C. H. Pearson worked for the Kellex Corporation at the K-25 Plant.
Robert E. Armstrong was a staff member at Los Alamos during the Manhattan Project.
P. V. Evans worked at the 200 West Area at Hanford during the Manhattan Project.