L. George Bauer

Edward J. Fredrick

Edward J. Fredrick was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Harry A. Bard

Duffer Crawford

Duffer Crawford worked for the civilian contractor Kellex Coroporation in New York under the supervision of Judson Swearingen.

Mary Elizabeth Long (Barnes)

Mary Elizabeth Barnes was a radiochemist working in the Y-12 Plant in Oak Ridge, Tennessee from 1946 to 1952.