Melvin G. Hopkins

Sidney Williams

Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.

W. M. Salminen

W. M. Salminen worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Cleo A. Wangsness

Cleo Wangsness was a staff worker at Los Alamos during the Manhattan Project.

T. J. Rathbone