National Museum of Nuclear Science & History
A. R. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Breadhead worked at Los Alamos during the Manhattan Project.
Michael Cefola was an American chemist and a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. C. Tippins worked for the J.A. Jones Construction Company.
