Frank S. Brown

Opaline Calhoun

Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Harry D. Wise

N. R. Glarum

N. R. Glarum worked for Clinton Laboratories at the X-10 Reactor.

Robert Helton

Robert Helton worked for the Tennessee Eastman Corporation at the Y-12 Plant.