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National Museum of Nuclear Science & History

E. C. Smith, Jr.

Project StaffK-25 Plant

Oak Ridge, TN
Manhattan Project VeteranProject Worker/Staff
The K-25 Plant at Oak Ridge

E. C. Smith, Jr. worked for the Kellex Corporation at the K-25 Plant.

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Herbert G. “Mac” MacPherson

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Herbert G. “Mac” MacPherson (1911-1993) was an American nuclear engineer. MacPherson’s expertise on graphite made him a valuable consultant for the Manhattan Project.