National Museum of Nuclear Science & History
Before WWII, Miles Leverett was a young Ph.D chemical engineer working for Humble Oil & Refining Co.
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.
Irene Balawender was a stenographer in the Instrument Section at the Metallurgical Laboratory in Chicago during the Manhattan Project.