National Museum of Nuclear Science & History
Smith worked at the 200 West Area at Hanford during the Manhattan Project.
M. E. Gregson worked for the Roane-Anderson Company.
Samuel McNeight was a DuPont employee member who was a part of the team tasked with constructing the B Reactor at Hanford.
Robert Keen enlisted in the military on December 28, 1944 and began his training for the U.S. Army Corps of Engineers in January of 1945.