You might want to check out these holdings listed in the US Army Military History Institute, Carlisle Barracks, Pa. unit bibliography.
U.S. Army Military History Institute
950 Soldiers Drive
Carlisle Barracks, PA 17013-5021
30 May 2012
18th Georgia Infantry Regiment
Beall, John B. In Barrack and Field: Poems and Sketches of Army Life. Nashville, TN: Smith &
Lamar, 1906. 420 p. E605.B36.
The Confederacy is on Her Way Up the Spout: Letters to South Carolina, 1861-1864. [Edited by J.
Roderick Heller III and Carolynn Ayres Heller] Athens, GA: U GA, 1992. 157 p. E605.C74.
(Includes letters of Milton Barrett of the 18th).
Folsom, James M. Heroes and Martyrs of Georgia: Georgia’s Record in the Revolution of 1861.
Baltimore, MD: 1995. pp. 11-19. E559.F65. (Brief history of unit).
Georgia. State Division of Confederate Pensions and Records. Roster of the Confederate Soldiers of
Georgia, 1861-1865. Vol. 2. Hapeville, GA: Longina & Porter, 1959. pp. 614-98.
E559.3.G4v2. (Unit roster).
The following pertinent personal papers are in the Institute's Manuscript Archive:
Galphin, Thomas (Letter) - HCWRTColl-GACColl
Howard, Franics M. (Letter) - LeighColl Book 25: 84