National Museum of Nuclear Science & History
Barrett worked for Stone and Webster Engineering Corporation.
Theodore Berkeley served in the 1395th Military Police Company, Aviation.
Ruth A. Casler was a lab technician in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Russell McNutt (1914-2008) was a civil engineer for the Kellex Corporation and Soviet atomic spy. Both studying engineering in New York, McNutt befriended Julius Rosenberg, one of the most well-known Soviet spies and recruiters.