National Museum of Nuclear Science & History
H. R. Grady worked for the Tennessee Eastman Corporation at the Y-12 Plant.
R. T. Arends worked for the Roane-Anderson Company.
Walter M. Longfelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
G. S. Shanks worked for the Tennessee Eastman Corporation at the Y-12 Plant.