Philip M. Barnes

Mark W. Luckett

Mark W. Luckett worked for the Fercleve Corporation at the S-50 Thermal Diffusion Plant at Oak Ridge in 1945.

R. B. Craig

Rolf Peterson

Rolf Peterson was a physicist at Los Alamos from 1943 through the end of the war. Peterson graduated from St.

Leonard Krouldis

Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.