John M. Naugle

L. Timm

Leo P. Hassen

Leo P. Hassen was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Edward Melkonian

Edward Melkonian was an American physicist. He was born in Alexandria, Egypt on June 29, 1920, to parents of Armenian heritage who had fled persecution in Turkey.

Richard F. Recker

Richard Recker served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.