Stanley L. Kieltyka

D.E. Jenne

Leroy H. Jackson

Leroy Jackson was transferred into the Manhattan District, the branch of the United States Army Corps of Engineers tasked with overseeing the construction of critical Manhattan Project sites, shortly after its formation in 1942.

Gordon E. Waters

Gordon Waters was a staff worker at Los Alamos during the Manhattan Project.

A. Frei

Frei worked for Stone and Webster Engineering Corporation.