John P. Draughon

Francis J. Hatcher

S. C. Dobbs

S. C. Dobbs worked for the Combustion Engineering Company.

Joseph Kouba

Joseph Kouba was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Harold Urey

Harold Urey (1893-1981) was an American physical chemist and winner of the 1934 Nobel Prize in Chemistry.