Fred J. Edeskuty

Lab SupervisorK-25 Plant

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Ray Smith is the historian at the Y-12 National Security Complex. His specific focus is the history of Oak Ridge, and he is intimately acquainted with the uranium enrichment processes undertaken at the Y-12, K-25, and S-50 plants during the Manhattan Project, and how the Fat Man and Little Boy bombs worked.

Valda B. Lemke

Chicago, IL

Valda B. Lemke was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.

James Collinsworth

Tinian Island

James Collinsworth served in the 603rd Air Engineering Squadron.

Charles D. Hensley

Oak Ridge, TN

Charles Hensley worked for the United States Engineer District Office.