National Museum of Nuclear Science & History
I. J. Pardee worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Joseph Ryan was a staff worker at Los Alamos during the Manhattan Project.
Groht worked for Stone and Webster Engineering Corporation.
Helen Williams was a stenographer and clerk at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Roy Greenlee was a chemist at the University of Chicago Metallurgical Lab and at Oak Ridge, Tennessee.
