Van Calhoun Jr.

Warren A. Sharp

Warren Sharp was a chemical engineer employed at the K-25 Plant in Oak Ridge, Tennessee. Sharp assisted with the gaseous diffusion process as a civilian after unsuccessfully trying to enlist in military service.

Norene Mann

Norene Mann was a secretary at the University of Chicago Met Lab. She worked for Nobel laureate James Franck, but often also acted as a secretary for Leo Szilard.

Ralph R. Tison

Ralph R. Tison served in the 393rd Bombardment Squadron.

Melvin F. Leonard