National Museum of Nuclear Science & History
Jesus Royball was a staff worker at Los Alamos during the Manhattan Project.
H. Courtney worked for the Rock City Construction Company.
Claire Balke was the leader of the Miscellaneous Metallurgy Division in the Chemistry and Metallurgy Division at Los Alamos during the Manhattan Project.
Walter M. Longfelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
