David L. Patten

Roy C. Vankirk

Roy Vankirk was a staff worker at Los Alamos during the Manhattan Project.

Melvin Jepsen

Paul Laulotta

Paul Laulotta was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Jay Hitchcock

Jay Hitchcock worked in the Shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.