National Museum of Nuclear Science & History
H. A. Rehnberg worked for the Kellex Corporation at the K-25 Plant.
Arthur Watmough was an electrical engineer working for the DuPont Chamberworks Company in New Jersey from 1941 to 1947.
Louis M. Lee served in the 390th Air Service Group.
D. D. Frazer worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Hardleben worked at the 100-F Area at Hanford during the Manhattan Project.