National Museum of Nuclear Science & History
A Missourian by birth, W.K. ("Mac") MacCready held undergraduate and graduate degrees in physical chemistry from the University of Alabama.
Jas Welch worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Raymond Dujack was a young lab technician at the Special Alloyed Materials (SAM) Laboratories at Columbia University.
Arthur G. Barney served in the 393rd Bombardment Squadron.
