National Museum of Nuclear Science & History
Acie Singleton was a laborator helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
George Michell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Andrew H. MacMahon was the Chief Property Officer of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Marselis Powell worked for the Union Carbide & Carbon Corporation.