Dunbarton was a town in Barnwell County, South Carolina, United States, in 1951, it was acquired by the U.S. Atomic Energy Commission as part of a site for which nuclear reservation in the United States in the state of South Carolina, located on land in Aiken, Allendale, and Barnwell counties adjacent to the Savannah River, 25 mi southeast of Augusta, Georgia?
Dunbarton, South Carolina:  Dunbarton grew after a train stop was built on a new rail line.
i don't know