National Museum of Nuclear Science & History
Reba Holmberg grew up in Robertsville, Tennessee, and experienced its claiming by the federal government for the Manhattan Project.
McCloud worked as a secretary at the Y-12 plant at Oak Ridge during the Manhattan Project.
Cunningham worked in the United States Engineer District Office.
Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.