National Museum of Nuclear Science & History
Robert Hargraves worked for the H. K. Ferguson Company.
Fred Moore worked for the Kellex Corporation at the K-25 Plant.
Marian S. Baumann was a laboratory technician at the Metallurgical Laboratory in Chicago during the Manhattan Project.
James B. Snodgrass was a member of the Mounted Military Police working on site security at Los Alamos and the Trinity test site.
