M. L. Thigpen

John P. McBride

John P. McBride was a research assistant in the Chemistry Division at the Chicago Met Lab. He was later assigned to Oak Ridge, where he worked on plutonium purification and on isolating uranium-233 isotopes from thorium.

W. M. Miller

W. M. Miller worked for the United States Engineer District Office.

John Crawford

John Crawford was a physicist and research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

H. L. Jewell