National Museum of Nuclear Science & History
J. B. Marcum worked for the Union Carbide & Carbon Corporation.
Velva Irwin worked as a Calutron girl at the Y-12 Plant at Oak Ridge, TN. She was only 16 when she began working on the Manhattan Project.
Lewis worked for Stone and Webster Engineering Corporation.
Charles Pigott worked for the Tennessee Eastman Corporation at the Y-12 Plant.