National Museum of Nuclear Science & History
George Riggenbach was a staff worker at Los Alamos during the Manhattan Project.
N. F. Smyth worked for the Kellex Corporation at the K-25 Plant.
W. R. McIntosh worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Frank Foote was the Principal Metallurgist at the Manhattan Project’s Metallurgical Laboratory at the University of Chicago.
Howard Parsons was an American physicist. Parsons was born in Chicago in 1920. He receieved a B.S. from the University of Chicago, and shortly afterwards was hired to work on the Manhattan Project as a research assistant at the Chicago Met Lab.