This regiment was organized at Auburn, Sept. 4, 1861, and the field officers were appointed by President Davis. A few weeks later, it went to Mobile, by way of Huntsville, and was there brigaded under Gen. Gladden of Louisiana, with the Nineteenth, Twentieth, Twenty-second, and Twenty-fifth Alabama regiments, Withers' division. Ordered to Corinth in March 1862, the regiment was there brigaded under Gen. J.K. Jackson of Georgia, with the Seventeenth and Nineteenth Alabama regiments. The Eighteenth fought the first day at Shiloh, and lost 125 killed and wounded out of 420 men engaged. It was detailed to escort the brigade of Gen. Prentiss, which it had largely aided to capture, to the rear, and did not take part the second day. After the battle, the regiment being withouth field officers, was for a short time under officers detailed for the purpose. It was under fire at Blackland, and soon after was sent to Mobile. There the Eighteenth remained till April 1863, when it rejoined the army of Tennessee, in a brigade with the Thirty-sixth and Thirty-eight Alabama regiments, and the Ninth Alabama battalion (the latter being soon after raised to the Fifty-eighth regiment, and consolidated subsequently with the Thirty-second Alabama), commanded successively by Generals Cummings of Georgia, Clayton of Barbour, Holtzclaw of Montgomery, and Colonel Bush Jones of Perry. At Chicamauga the Eighteenth was terribly mutilated, losing 22 out of 36 officers, and 300 out of 500 men, killed and wounded. At Mission Ridge the Eighteenth was engaged, and lost about 90 men, principally captured. Having wintered at Dalton, it began the Dalton-Atlanta campaign with 500 effective men, and fought all the way down to Jonesboro, losing constantly in killed and wounded, but with no severe loss at any one place. It lost very nearly half its number during the campaign, and rendered effective service. The regiment went with Gen. Hood into Tennessee, and lost about 100 at Franklin, principally captured. When the army moved to the Carolinas in February 1865, the regiment was ordered to Mobile, and placed in the field works at Spanish Fort. It participated prominently in the siege of that place several weeks later, with some loss, and escaped when the defences were evacuated. It surrendered at Meridian, Miss., May 4, 1865, with the military department.
Colonels - Edward C. Bullock of Barbour; died in service. Eli S. Shorter of Barbour; resigned. James T. Holtzclaw of Montgomery; wounded at Chicamauga; promoted. Peter F. Hunley of Shelby.
Lieutenant Colonels - Eli S. Shorter; promoted. J.T. Holtzclaw; wounded at Shiloh; promoted; Richard F. Inge of Greene; killed at Chicamauga. Peter F. Hunley; promoted. Shep. Ruffin of Pike; promoted.
Adjutants - B.W. Starke of Pike; wounded at Shiloh; resigned. John P.C. Whitehead of Georgia; transferred. R.P. Baker of Mobile.
Coffee - William M. Moxley; resigned. B.W. Starke; wounded at Shiloh; resigned. Joseph Justice; killed at Chicamauga. Noah Hutchinson.
Covington - James Brady; resigned. O.A. Stringer; killed at Chicamauga. Thomas Hardwick.
Jefferson - James Oliver; resigned. James McLaughlin.
Coosa - Guy Smith; resigned. Charles M. Cox; resigned. W.H. Hammond; killed at Chicamauga. George M. Williams; wounded at Chicamauga; captured at Franklin.
Tuskaloosa - Richard F. Inge; promoted. S.K. Wilkerson; captured at Mission Ridge.
Butler - H. Clay Armstrong; resigned. Aug. C. Greene; wounded at Jonesboro.
Jefferson - James Haughey; resigned. H.P. Walker.
Pike - Shep. Ruffin; promoted. S.K. Fielder; killed at Chicamauga. J.B. Darby; wounded at New Hope.
Shelby - Peter F. Hunley; wounded at Shiloh; promoted. J.M. Mickle; killed at Chicamauga. .... Martin.
Talladega - John Calhoun; resigned. H. Clay Stone; wounded at Chicamauga; detached. Thomas M. Riser.