My branch of Smailes is an entirely different line, but I thought I'd share what I've stumbled across in my research.
-- Your George Smailes appears to have been a son of Thomas Smailes and Mary Marsh, who were married Sept. 1, 1776, in Philadelphia, Pa. Thomas can be found in the 1820 census. He was a leather cutter and tanner. Thomas and Mary had 4 documented children: Mathias, Nancy, John and your George, all born in Virginia in the late 1700s.
-- George married Elizabeth Shuck Jan. 6, 1824, in Greenbrier Co., Va. George b 1796, d. June 20, 1966, in Fayette County, Va. He is reported to have been buried in an unmarked grave in Fayette Co., Va., near the homeplace on Pittman-Landisburg Road, Route 41.
-- In addition to Emily, George and Elizabeth had 8 other children: Mary, John, Cynthia, Nancy, Rachel, Rebecca, Sarah, and Isabelle.
Contact me for more information, or check out contributions to RootsWeb's World Connect Project by searching for Smailes. When researching, keep in mind that Greenbrier County, Va., was split among several counties when West Virginia gained statehood.