National Museum of Nuclear Science & History
S. D. McGee worked for the Edenfield Electric Company.
Grim worked for Stone and Webster Engineering Corporation.
James R. Chapman was an engineer working for Stone & Webster when he was recruited to work on the Manhattan Project.
Before he came to Hanford Sam Campbell had a varied work history, including service with the coast artillery in the Philippines and pipeline construction in South America.
Jean Cooper was an engine mechanic in the 393rd Bomber Squadron of the 509th Composite Group serving in both Wendover, Utah and Tinian Island in the Pacific.
