National Museum of Nuclear Science & History
Berry worked for Stone and Webster Engineering Corporation.
William St. Clair worked for the United States Engineer District Office.
Carrie Johnson was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
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.