National Museum of Nuclear Science & History
N. J. Holland worked for the Roane-Anderson Company.
Marvin D. Cooke worked for the J.A. Jones Construction Company.
Vincent Lonnquist served in the 1st Ordnance Squadron.
Stanley A. Kiedrowski served as a sergeant in the 393rd Bombardment 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.
