National Museum of Nuclear Science & History
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.
D. A. Parker worked for the Edenfield Electric Company.
James E. Davidson served in the 1027th Air Material Squadron.
George Maronde was a security guard at the University of Chicago Metallurgical Lab. He stood guard outside Stagg Field when Chicago Pile-1 went critical on December 2, 1942.