John Ingram

R. E. Delano

Ruth Hoffberg

Ruth Hoffberg was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Evelyn Ellingson

Evelyn Ellingson arrived in Oak Ridge in early 1943 when many of the site’s facilities were still being constructed.

M. F. Welch

M. F. Welch worked for the United States Engineer District Office.