John R. Raper

Helena Calloway

Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

C. A. Lindenmeyer

C. A. Lindenmeyer worked for the Midwest Piping and Supply Company.

Edward L. Brady

Edward L. Brady was a chemist who worked on the Manhattan Project at Chicago and Oak Ridge. Brady received a B.

D. C. Woley