National Museum of Nuclear Science & History
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.
A Missourian by birth, W.K. ("Mac") MacCready held undergraduate and graduate degrees in physical chemistry from the University of Alabama.
Paul Willard was a staff worker at Los Alamos during the Manhattan Project.
Henry Yevlove worked for Harold Urey’s group at Columbia University as a junior scientist. He later changed his last name to “Young.
