Chloe S. Leazer, Jr.

R. C. Wright

R. C. Wright worked for the Union Carbide & Carbon Corporation.

Stanley Krzyck

Stanley Krzyck was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Richard A. Popham

Richard Popham oversaw radiation safety in the Chemistry-Metallurgy Division at Los Alamos during the Manhattan Project.

Donald R. Harris