National Museum of Nuclear Science & History
Viola Vigil was a staff worker at Los Alamos during the Manhattan Project.
W. K. Blair worked for the Roane-Anderson Company.
K. Langosch worked in the Instrument Section at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
Alfred Pfanstiehl was a junior physicist at the Chicago Met Lab during the Manhattan Project. Pfanstiehl was a signatory of the Szilard Petition, an attempt to avert military use of the atomic bomb against Japan.
