National Museum of Nuclear Science & History
Menges was an Area Engineer and Area Supervisor at the Hanford Engineer Works. He was in the US Navy (USNR) until June of 1943 when he was injured in an explosion on his destroyer.
Oscar J. Thigpen served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
L. F. Preston worked for the United States Engineer District Office.