National Museum of Nuclear Science & History
Secundino Roybal was a staff worker at Los Alamos during the Manhattan Project.
Fred Smyth worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Kenneth Peterson was a cryptographer for the 390th Air Service Group in the 509th Composite Group from September 1944 to November 1945.
J. N. Holt worked for the United States Engineer District Office.
