National Museum of Nuclear Science & History
Arthur S. Olson was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Barnes worked in the United States Engineer District Office.
Clarke C. Mathison served in the 320th Troop Carrier Squadron.
Natalie Marshall worked at Los Alamos on the Manhattan Project. She was married to Shad Marshall, who also worked on the project.
