National Museum of Nuclear Science & History
S. C. Barnett worked for the Union Carbide & Carbon Corporation.
Leonard Reed was a janitor at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Reynolds worked for Stone and Webster Engineering Corporation.
Lillian Guadagna was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. E. Gilcrease worked for the Tennessee Eastman Corporation at the Y-12 Plant.
