H. M. Ellis, Jr.

J. P. Cole

Cole worked for Stone and Webster Engineering Corporation.

J. D. Chamberlain

Helen E. Krinek

Helen E. Krinek was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

A. C. Beltzner

Beltzner worked at the 100-D Area at Hanford during the Manhattan Project.