National Museum of Nuclear Science & History
H. E. Armstrong worked for the Tennessee Eastman Corporation at the Y-12 Plant.
LeRoy Thornton worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Haigh worked at the 100-F Area at Hanford during the Manhattan Project.
Ed Helfenberger worked for the Roane-Anderson Company.
Gebhardt worked for Stone and Webster Engineering Corporation.
