National Museum of Nuclear Science & History
Hughes worked for Stone and Webster Engineering Corporation.
James B. Snodgrass was a member of the Mounted Military Police working on site security at Los Alamos and the Trinity test site.
P. B. Evans worked at the 200 West Area at Hanford during the Manhattan Project.
Roy W. Carlson was an engineer. He worked on the Manhattan Project at Los Alamos and the University of California, Berkeley, as a member of the Explosives Division and Group X-2A.
