National Museum of Nuclear Science & History
Okey B. Ellison was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
H. O. Arnold worked for the Kellex Corporation at the K-25 Plant.
Captain John Allen Anthes (1913-2015) was a chemical engineer who worked in the Special Materials section of the Madison Square Area of the Manhattan District in New York City.
