National Museum of Nuclear Science & History
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.
A. J. MacDonald worked for the Union Carbide & Carbon Corporation.
Grace Thompson was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
James A. Parsons was an American chemical engineer. Parsons was born in Hand County, South Dakota. Upon graduation from South Dakota School of Mines and Technology, B.
