This could be he. There are some 21 cards in his service record file. I can hardly read the document, but it looks like his place of residence is Unicon District, SC.

George Martin

George T. Hyatt

Residence was not listed;
Enlisted as a Private (date unknown).
"K" Co. SC 3rd Infantry

George T. Hyatt, age 20, enlisted in Captain Benj. Kennedy's Company*, 3rd Regiment, South Carolina Volunteers on April 14, 1861 at Spartenburg. some 100 miles from home, wounded in action before Richmond, Va., June 29, 1862 and near Fredrickburg December 18, 1862, subsequently he was captured and released at Point Lookout POW camp June 13, 1865.

*This company, upon consolidation, subsequently became Company K, 3rd Regiment, South Carolina Infantry, paroled At Greensboro, N. C., May 2, 1865