National Museum of Nuclear Science & History
E. M. Grant worked for the Roane-Anderson Company.
Joseph (J.) Garrott Allen was a research associate in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Smith worked at the 200 West Area at Hanford during the Manhattan Project.
E. P. Graham worked for the Tennessee Eastman Corporation at the Y-12 Plant.