National Museum of Nuclear Science & History
H. E. Newman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
G. G. Underwood worked for the Tennessee Eastman Corporation at the Y-12 Plant.
H. T. Welty, Jr. worked for the Roane-Anderson Company.
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
