National Museum of Nuclear Science & History
H. L. Small worked for the Kellex Corporation at the K-25 Plant.
Levey was a member of the Army Special Engineering Detachment who worked at the K-25 plant at Oak Ridge during the Manhattan Project.
J. J. Tulley worked for the Fercleve Corporation.
A. Castle worked for the Roane-Anderson Company.
Arthur was a staff member at Los Alamos during the Manhattan Project.