National Museum of Nuclear Science & History
George I. Ray worked for the G.G. Ray Company.
Thomas Guilfoyle was a member of the Military Police at the University of Chicago's Metallurgical Lab from 1943 to 1945.
Argue worked for the Stone and Webster Engineering Corporation.
Katherine Gnjec was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
G. O. Robinson, Jr. worked for the United States Engineer District Office.
