National Museum of Nuclear Science & History
William Gray worked for the Roane-Anderson Company.
John Brady served as a Machinist at the Hanford Nuclear Reservation from 1943 to 1960. He was proud of the work he did at Hanford, though it was always a mystery to his children because Brady wouldn't talk about his job.
H. W. Carnes worked for the Union Carbide & Carbon Corporation.
W. M. Salminen worked for the Tennessee Eastman Corporation at the Y-12 Plant.