National Museum of Nuclear Science & History
O'Connor worked for Stone and Webster Engineering Corporation.
Minnesota native Roger Hultgren worked for the DuPont Company as a chemist during the early 1940s, initally assigned to the Jolliet, Illinois munitions plans.
Ruth Boe worked at the Met Lab in Chicago from November 1943 through June 1945. She was in Farrington Daniels’ division, in the graphite research section.
R. H. Cook worked for Clinton Laboratories at the X-10 Reactor.