National Museum of Nuclear Science & History
H. W. Butsch worked for the William A. Pope Company.
R. E. Hoffman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Thomas Guilfoyle was a member of the Military Police at the University of Chicago's Metallurgical Lab from 1943 to 1945.
Ray Williams was a member of the 1st Ordnance Squadron in the 509th Composite Group in Wendover, Utah and on Tinian Island in the Pacific in 1945.