National Museum of Nuclear Science & History
A. J. MacDonald worked for the Union Carbide & Carbon Corporation.
Sarah Bailey was very young when she went to work at the K-25 plant in Oak Ridge. She was employed by Carbide & Carbon Chemicals Corporation, a contractor in the gaseous diffusion operation, in 1945.
Morris R. Jeppson served as a lieutenant in the 1st Ordnance Squadron. He also worked as a weapons test officer.
Grills worked at the 100-B Area at Hanford during the Manhattan Project.
Eleanor Caldwell was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.