National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
J. E. Parnell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Gale Kenney was a member of the Special Engineering Detachment and worked in the K-25 Plant in Oak Ridge, Tennessee.
William Hackman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
