National Museum of Nuclear Science & History
C. M. Cates worked for the Edenfield Electric Company.
V. N. Hacker worked for the J.A. Jones Construction 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.
Douglas Meigs was a civilian chemical engineer working for H. K. Ferguson, the company that built and operated the S-50 Thermal Diffusion facility at Oak Ridge.
Philipp Klein was a part-time switchboard operator in the SAM Lab while studying chemical engineering at Columbia University.