National Museum of Nuclear Science & History
R. G. Mansfield worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Klein was a member of the Special Engineering Detachment. He worked at the Metallurgical Lab at the University of Chicago and at Los Alamos.
A. B. Carper worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Betty L. Carlson was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.