Listed in the Roster of Confederate Soldiers, 1861-1865, as:

Hammack, Talbot G. GA 6th Inf. Co.C Sgt.

6th GA Inf Reg organized "for the war" 5/27/1861 - mustered into Confederate service at Atlanta 5/27/1861 - surrendered by Gen Joseph E Johnston at Durham Station, NC 5/26/1865
BATTLES:
Yorktown Siege Apr 1862
Williamsburg 5/5/1862
Seven Pines 5/31-6/1/1862
Seven Days Battles 6/25-7/1/1862
Gaines' Mill 6/27/1862
Malvern Hill 7/1/1862
South Mountain 9/14/1862
Antietam 9/17/1862
Fredericksburg 12/13/1862
Chancellorsville 5/1-4/1863
near Grimballs' Landing, James Island, SC 7/16/1863
Charleston Harbor Aug-Sept 1863
Olustee 2/20/1864
Drewry's Bluff 5/16/1864
Cold Harbor 6/1-3/1864
Petersburg Siege June 1864-Apr 1865
The Crater 7/30/1864
Fort Harrison 9/29-30/1864
2nd Fort Fisher 1/13-15/1865
Carolinas Campaign Feb-Apr 1865
Bentonville 3/19-21/1865