National Museum of Nuclear Science & History
Edward Littleton was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ruben Salazar was an employee with Reynolds Electrical and Engineering Company, tasked with doing electrical distribution around Los Alamos.
R. H. Miller worked for the United States Engineer District Office.
Robert Byrd worked for the Poe Piping & Heating Company.