National Museum of Nuclear Science & History
Ellis Ryan was a staff worker at Los Alamos during the Manhattan Project.
Nicholson worked for Stone and Webster Engineering Corporation.
C. V. Edwards worked for the Watson-Flagg Engineering Company.
John Brill was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
W. A. Bogdanowiez worked for the Tennessee Eastman Corporation at the Y-12 Plant.
