National Museum of Nuclear Science & History
Before WWII, Miles Leverett was a young Ph.D chemical engineer working for Humble Oil & Refining Co.
Theodore Petry (1924-2018) was a laboratory helper at the Chicago Met Lab. He was recruited while still in high school.
J. G. Ayre worked for the J.A. Jones Construction Company.
Gaffney worked in the United States Engineer District Office.