My Wife's Great grandfather, and her two great uncles their names ( Great grandfather William T. Smith or W. T. Smith)
John E. Smith, and Henry Smith. They from Ringgold, Catoosa County and Whitfield County area. They also survive the war.
I think two was POW.

William T. Smith, W. T. Born- 1829
John E. Smith Born -1828
Henry Smith Born-1834