S. J. Butensky

E. J. Ford

Ford worked for Stone and Webster Engineering Corporation.

R. D. Henley

R. D. Henley worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Hugo Leckelt

Hugo Leckelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Donald S. Dreesen