National Museum of Nuclear Science & History
Alfanso Sandoval was a staff worker at Los Alamos during the Manhattan Project.
R.J. Stepheson was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
W. G. Chmielewski was a carpenter at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Clarence Francis Hiskey (1912-1998) was an American chemist and Soviet spy. He worked at Columbia University and the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
L. J. Koch worked for the Tennessee Eastman Corporation at the Y-12 Plant.
