National Museum of Nuclear Science & History
E. B. Wentworth worked for the G.G. Ray Company.
C. D. Mahood worked for the Roane-Anderson Company.
Raymond Lowrey worked at the Hanford, Washington site for the Manhattan Project from 1943 to 1948. Lowrey began his career in the Oklahoma Ordnance Works before moving to Hanford and settling in Richland, Washington after the war.
Jas Curran worked for Hanley & Company.