National Museum of Nuclear Science & History
R. M. Smith worked for the United States Engineer District Office.
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.
Joseph Rush worked for Clinton Laboratories at the X-10 Reactor.
Paul L. Eisenacher worked at the 200 West Area at Hanford during the Manhattan Project.