National Museum of Nuclear Science & History
Howard Parsons was an American physicist. Parsons was born in Chicago in 1920. He receieved a B.S. from the University of Chicago, and shortly afterwards was hired to work on the Manhattan Project as a research assistant at the Chicago Met Lab.
Joseph Vollmer served in the army at Los Alamos during the Manhattan Project.
Ruben Salazar was an employee with Reynolds Electrical and Engineering Company, tasked with doing electrical distribution around Los Alamos.