National Museum of Nuclear Science & History
Roy Schroeder was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
C. H. Pearson worked for the Kellex Corporation at the K-25 Plant.
R. H. Morris worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Riddle was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.