P. J. Crowder

William S. Johnston

William S. Johnston was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

E. J. Bloch

Bloch worked in the United States Engineer District Office.

L. J. Boyette

Boyette worked at the 100-B Area at Hanford during the Manhattan Project. 

Maurice C. Ostroth