National Museum of Nuclear Science & History
Joseph Ryan was a staff worker at Los Alamos during the Manhattan Project.
Niels Thude was a staff worker at Los Alamos during the Manhattan Project.
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.
Walter Bartky (1901-1958) was an American educator and mathematician. He did both his undergraduate and graduate studies at the University of Chicago.