James R. McGuffey

Ray C. Armstrong

Armstrong worked in the United States Engineer District Office.

Paul D. Krause

Paul D. Krause was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Flonnie E. Sloan

Flonnie Sloan worked in Building 9201 in the Y-12 plant at Oak Ridge, Tennessee from 1943 to 1945. 

David Batey