National Museum of Nuclear Science & History
P. S. Titus worked for the Union Carbide & Carbon Corporation.
R. W. Llewellyn worked for the United States Engineer District Office.
John M. Sprecher was a chemical engineer. During the Manhattan Project, he worked for DuPont in Wilmington, DE.
H. C. Seward worked for the Roane-Anderson Company.
Eric Jette (1897-1963) was an American metallurgist. He was a professor of metallurgy at Columbia University School of Mines before being recruited for the Manhattan Project.
