Fred G. Blackwell

H. F. Gibbs

H. F. Gibbs worked for the A. S. Schulman Electric Company.

Alfred L. Carson

Alfred Carson was a mechanical engineer in the Special Engineering Detachment, and spent time at both Oak Ridge, Tennessee, and Los Alamos, New Mexico.

Charles Robinson

Charles Robinson was a site engineer at Los Alamos during the Manhattan Project.

D. Marden