Frank D. Duffy

A. J. Metler

A. J. Metler worked for Clinton Laboratories at the X-10 Reactor.

Walter M. Longfelt

Walter M. Longfelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Earl K. Hyde

Earl K. Hyde was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Frank L. Dolash