National Museum of Nuclear Science & History
Hilford Nelson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jesus Royball was a staff worker at Los Alamos during the Manhattan Project.
Herbert G. “Mac” MacPherson (1911-1993) was an American nuclear engineer. MacPherson’s expertise on graphite made him a valuable consultant for the Manhattan Project.
Harold E. Young was a staff worker at Los Alamos during the Manhattan Project.
