National Museum of Nuclear Science & History
Juan Romero was a staff worker at Los Alamos during the Manhattan Project.
L. G. Tanner worked for the United States Engineer District Office.
Joseph (J.) Garrott Allen was a research associate in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Marion Edward Cieslicki was an Polish American metallurgist who worked on the Manhattan Project from 1944 to 1946 at the University of Chicago and at Los Alamos.
