National Museum of Nuclear Science & History
L. Grant worked for the Roane-Anderson Company.
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.
Leo Safranski was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.
L. W. Stark worked for the Tennessee Eastman Corporation at the Y-12 Plant.
