E. E. Coulter

Huston R. Marlatt

Valentin Padilla

Valentin Padilla was a staff worker at Los Alamos during the Manhattan Project.

H.A. Fettinger

H.A. Fettinger was a junior physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

W. H. Wilson

W. H. Wilson worked for the H. K. Ferguson Company.