Fred G. Blackwell

Arthur R. Weisberg

Arthur Weisberg was a mechanical engineer with the Special Engineer Detachment assigned to the Metallurgical Lab at the University of Chicago.

K. R. McKenzie

Frances S. Gates

Frances Gates worked for the Roane-Anderson Company.

Ethel G. Moonan

Ethal Moonan was a staff worker at Los Alamos during the Manhattan Project.