National Museum of Nuclear Science & History
Andrew Welch was a janitor at the Chicago Met Lab during the Manhattan Project.
Ilse Perlman was a staff worker at Los Alamos during the Manhattan Project.
Clarence Joyce worked for the Poe Piping & Heating Company.
Ida Cunningham was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
