National Museum of Nuclear Science & History
Gagen worked in the United States Engineer District Office.
Hughes worked at the 200 West Area at Hanford during the Manhattan Project.
Ellsworth Risley was a staff worker at Los Alamos during the Manhattan Project.
Herman H. Fussler was the Assistant Director of the Information Division and Librarian of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.