National Museum of Nuclear Science & History
Mary Lanahan was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
John Armstrong worked for the Kellex Corporation at the K-25 Plant.
Hays worked at the 200 West Area at Hanford during the Manhattan Project.
Lomie F. Caho was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
