National Museum of Nuclear Science & History
E. R. Smallwood served in the 509th Headquarters.
Bob Purbrick was an American physicist. Purbrick was born in 1919 in Salem, Oregon. He received a B.A.
Rich worked for Stone and Webster Engineering Corporation.
Technical Sergeant Roderick F. Arnold (1917-1998) was a Flight Engineer assigned to the Bockscar’s original crew.