National Museum of Nuclear Science & History
Francis Cook worked for the Roane-Anderson Company.
H.A. Fettinger was a junior physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Leo Seren (1918-2002) was an American physicist. Seren (in photo, first row standing, far right) was born on May 9, 1918.
Uzal Girard Ent was a United States Army Air Forces Officer and Commanding General, Second Air Force, headquartered in Colorado Springs, CO.
Lee W. Trybell worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.