National Museum of Nuclear Science & History
L. A. Castellanos worked for the J.A. Jones Construction Company.
L. H. Sudderth worked for the Edenfield Electric Company.
Leo James Rainwater was an American physicist and winner of the 1975 Nobel Prize in Physics. As a graduate student at Columbia University, Rainwater assisted the Manhattan Project through research in the Substitute Alloy Materials (SAM) Lab.
Melba (Johnston) Robson was a biomedical technician at the Metallurgical Laboratory in Chicago during the Manhattan Project.