William Lewis "Bud" Uanna played a critical role in maintaining security of the atomic bomb project. Uanna graduated from Officer Candidate School at Ft. Belvoir, Virginia in November 1942. As a 2nd Lt. in the U. S. Army Corps of Engineers, he was assigned to Military Intelligence, Counter Intelligence Corps (CIC). He held several posts of increasing responsibility and was appointed Security Officer for the Clinton Engineer Works at Oak Ridge, TN in August 1944.
In February 1945, Uanna was assigned to the Office of the Secretary of War and attached to the 509th Composite Group as chief of security. In September 1945 he was assigned to the investigative team that visited Nagasaki. After the war, Uanna was appointed Chief of the Central Personnel Clearance Office of the Atomic Energy Commission and later became head of security for the State Department.