National Museum of Nuclear Science & History
Viola Vigil was a staff worker at Los Alamos during the Manhattan Project.
Norman Harry Nachtrieb was an American chemist who worked on the Manhattan Project at the University of Chicago and Los Alamos.
M. W. Bredekamp worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Leo P. Hassen was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
