Pvt George Searight Nichols Co. D, Williamson Grays 1st (Feilds) Tennessee Infantry, October 1862. He is wearing the frock coat they were issued in late 1861, early 1862. He has on what appears to be a Federal Forage Cap, with a D and crossed cannon insignia. He has on civilian windowpane pattern plaid pants. He got sick right before the invasion into Kentucky and was left at Chattanooga. After he got well again he had this picture taken in Chattanooga in October 1862.
Courtesy (picture and text) Mike Hoover (1st Tn Co.D) from Tennessee State Library and Archives