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National Museum of Nuclear Science & History

R. F. Ridgeway

Project StaffOak Ridge, TN

Manhattan Project VeteranProject Worker/Staff
The Chapel on the Hill in Oak Ridge

R. F. Ridgeway worked for the Roane-Anderson Company.

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C. Calkins

T-Plant/200 Areas

Calkins worked at the 200 West Area at Hanford during the Manhattan Project. 

William J. Collinson

Tinian Island

William J. Collinson served as a 1st lieutenant in the 393rd Bombardment Squadron. He was the navigator regularly assigned to the B-29 Some Punkins.

J. W. Stein

Oak Ridge, TN

J. W. Stein worked for the Union Carbide & Carbon Corporation.

G. E. Halm

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Halm worked at the 300 Area at Hanford during the Manhattan Project.