RICHMOND HILL, Ga. — A Confederate flag captured by Union troops during the Civil War has been returned to the South thanks to the great grandson of one of Gen. William T. Sherman's artillery officers.

The flag belonged to a Georgia company called the Emmett Rifles and was put on display last month at Fort McAllister, which fell to Sherman's forces in December 1864, days before they captured nearby Savannah. The fort is now a Georgia state park.

The silk banner was donated by Robert Clayton of Islesboro, Maine, whose great-grandfather served under Sherman. Clayton found the flag 20 years ago along with a note that read: "To be return to Savannah or Atlanta sometime."

Civil War experts say similar flags are known to exist, but most were destroyed during the war.