National Museum of Nuclear Science & History
H. M. Toms worked for the Roane-Anderson Company.
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.
Philipp Klein was a part-time switchboard operator in the SAM Lab while studying chemical engineering at Columbia University.
George F. Popp served in the 603rd Air Engineering Squadron.
