National Museum of Nuclear Science & History
L. C. Danielson worked for the J.A. Jones Construction Company.
G. R. Klingman worked for the Roane-Anderson Company.
Celia Ryan was a staff worker at Los Alamos 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.
