According to a 1972 article on the Gettys family of Rutherford Co. NC, there was a Miles Elijah Gettys (born 1873), one of 6 children of John Gettys (1817-1886) and Alpha Toney (1840-1877). Does this fit in your time frame for Miles E. Gettys ?
John Gettys (1817-1886) was a son of John Carson Gettys (1785-1861) and Martha Abernathy. John Carson Gettys was born York Co. PA (near what is now Gettysburg, Adams Co. PA), moved to Duncan's Creek, First Broad River, Rutherford Co. NC in 1790 with parents William Gettys (1757-1813) and Agnes Carson. William Gettys was a son of Samuel Gettys of Donegal, Ireland, who settled by 1740 in the Manor of Maske tract south of what is now Gettysburg, Pa and died there in 1790 . Samuel Gettys married Isabella Ramsay, daughter of William and Martha Ramsey who also settled on the Manor of Maske in what is now Adams county, PA.