National Museum of Nuclear Science & History
Svoboda worked for Stone and Webster Engineering Corporation.
Elwin Covey was an assistant and protégé to Glenn Seaborg, and spent most of his time with the Manhattan Project at the X-10 plant in Oak Ridge, Tennessee.
DeNagy worked in the United States Engineer District Office.
Margaret Brown was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Frederick Hobbs worked for the United States Engineer District Office.