National Museum of Nuclear Science & History
Arthur was a staff member at Los Alamos during the Manhattan Project.
George Riggenbach was a staff worker at Los Alamos during the Manhattan Project.
G. B. McConnell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Norris W. Embrey was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
