H. C. Hall

H. E. Armstrong

H. E. Armstrong worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Arlie E. Stonecipher

Roy C. Vankirk

Roy Vankirk was a staff worker at Los Alamos during the Manhattan Project.

Mary McCormick

Mary McCormick was a secretary at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.