TheTennessee Thirty-first Infantry Regimentwas raised in Weakley, Haywood, Madison, McNairy and Decatur Counties, and was organized during the summer of 1861 with A. H. Bradford, colonel, and November 29 marched for Columbus, Ky., where it remained until the surrender of Fort Donelson in February, 1862. It then moved to Tiptonville, then to Fort Pillow, and, after the battle of Shiloh, to Corinth. Later it was moved to Chattanooga, and then moved north campaigning through Kentucky with Bragg. At Perryville the regiment had its first heavy engagement, displaying great gallantry and losing many valuable soldiers. Egbert E. Tansil succeeded Bradford as colonel. It marched south with the army and December 31 fought with conspicuous courage at Murfreesboro, and retreated south with the army, and in September, 1863, fought in the awful battle of Chickamauga, losing nearly half its men. In 1864, in the Georgia campaign, it was engaged in nearly all the principal battles, losing heavily in the aggregate. In the Tennessee campaign of Hood it fought at Franklin, losing over half the number engaged. Col. Stafford was killed on the enemy's line, to which he had penetrated. Again it fought at Nashville, then moved to North Carolina, where it surrendered.

The Tennessee 45th Infantry Regiment was organized at Camp Trousdale, Tennessee, in December, 1861. It participated in the Battle of Shiloh, was active at Baton Rouge, then served in the Jackson area. Later it was assigned to J.C. Brown's, Brown's and Reynolds' Consolidated, and Palmer's Brigade, Army of Tennessee. In November, 1863, it was consolidated with the 23rd Infantry Battalion. The regiment took an active part in the campaigns of the army from Murfreesboro to Atlanta, moving with General Hood back into Tennessee, but it was not engaged at Franklin and Nashville. It ended the war in North Carolina. The unit sustained 112 casualties at Murfreesboro, lost forty-three percent of the 226 at Chickamauga, and reported 12 men disabled at Missionary Ridge. The 45th/23rd Battalion totaled 316 men and 340 arms in December, 1863. Few surrendered in April, 1865.

The Tennessee 63rd Infantry Regiment [also called 74th Regiment] was organized in July, 1862. The men were from the counties of Claiborne, Roane, Washington, Knox, Hawkins, and Sullivan. It served in General Gracie's, B.R. Johnson's, and McComb's Brigade. The unit fought at Chickamauga and in the Knoxville Campaign, then joined the Army of Northern Virginia during the spring of 1864. It went on to participate in the conflict at Drewry's Bluff, the long Petersburg siege north of the James River, and the Appomattox Campaign. It lost more than fifty percent of the 404 engaged at Chickamauga, had 19 disabled at Bean's Station, and on April 8, 1864, totalled 405 men. At Drewry's Bluff the regiment reported 311 effectives and on April 9, 1865, surrendered 4 officers and 57 men.Companies - William H. Fulkerson (to major), Henley Fugate, Co. "A." Organized April 15, 1862 in Claiborne County.- William Lyon, Amos M. Hardin, Co. "B." Organized May 12 at Knoxville, from Roane County. Some men were formerly in the 26th Tennessee Infantry, others from Co. "E," 3rd Tennessee Cavalry Battalion.- Richard Fain Powel, Co. "C." Organized May 12 at Rogersville, Hawkins County. Also called "B" when first assigned.- A. A. Blair, James R. McCallum, Co. "D." Organized May 13 at Jonesboro, Washington County, with some men from Knox and Hawkins Counties. "The Kirby Smith Rifies."- Crockett R. Millard, Co. "E." Originally organized June 6, 1861 as Co. "K," 3rd (Vaughn's) Tennessee Infantry Regiment from Sullivan County. In the first Battle of Manassas. Reorganized May 14, 1862.- A. M. Millard, Co. "F." Organized May 14, 1862, from Sullivan County. Also called "G" when first assigned. Some men from 26th Tennessee Infantry.- F. A. Dyer, William H. Wilkerson, Co. "G." Organized May 6, 1862 at Knoxville. Also called "E" when first assigned. Some men from cavalry, some from 26th Tennessee Infantry.- B. F. Brittain, Co. "H." Organized May 16, 1862 at Cleveland, Bradley County. Formerly Co. "C" 1st (Rogers') East Tennessee Cavalry Regiment, Captain William L. Brown.- James T. Gillespie, John A. Gammon, Co. "I." Organized June 14, 1862 at Jonesboro, Washington County. Mustered in as an independent company of cavalry but transferred to infantry July 17, 1862 by General E. K. Smith.- John W. Robertson, Co. "K." Organized July 19, 1862 at Jonesboro, Washington County. Some men from Companies "D" and "G" were transferred to this company.

Colonel Campbell, in his account in Lindsley's Annals, stated that the archives of the first and second years operations of the regiment were lost in 1863. He stated that the regiment remained in Camp of Instruction near Union City until January, 1862, when it moved to Columbus, Kentucky; that only a few of the companies were partially armed, mostly with shotguns and hunting rifles, and that the regiment was not completely armed until a few weeks before the Battle of Shiloh, when they obtained some flint and steel muskets as a loan. At the Battle of Shiloh, April 6-7, 1862, the regiment was in Brigadier General Charles Clark's Division, Brigadier General Alexander P. Stewart's Brigade, composed of the 13th Arkansas, 4th, 5th, and 33rd Tennessee Infantry Regiments and Stanford's Battery. These three Tennessee regiments remained together throughout the war. The 33rd fought throughout the war with the Army of Tennessee, participating in the Atlanta Campaign, the Nashville Campaign, and the Carolina's Campaign. It was surrendered and paroled at Greensboro, North Carolina May 1, 1865. Companies Of The Tennessee 33rd Infantry Regiment Ellison S. Howard, W. C. Fleming, Henry W. Hickman, Co. "A." Men from Obion County. Thomas Lacy, Co. "B." Men from Madison County, some from Hardeman. Frank W. Marberry, Co. "C." Men from Calloway County, Kentucky. Wade H. Frost, James R. Scott, Co. "D." "The Forest Rovers." Men from Ohion County T. R. Hutcherson (or Hutchinson) (or Hutchison), John W. Walker, Co. "E." Men from Obion County. John Bedford, R. F. Morris, W. B. Jones, W. H. Adams, Co. "F." Men from Obion County. Warner P. Jones, James F. Carpenter, Bennett H. Smith, Eugene R. Morerod, Co. "G." Men from Lake County. T. O. Kiligore, W. R. McWherter, T. L. Killebrew, Co. "H." Men from Weakley County. James M. Wilson, W. E. Caidwell, Co. "I." Men from Obion County. James M. Bradford, Co. "K." Men from Obion County.

The 51st Regiment, Tennessee Infantry was organized at Henderson Station, Tennessee, in January, 1862. The 52nd was also organized at the same time with men from Tipton, Fayette, Shelby, Madison, and Jackson counties. A detachment of the 52nd was captured at Fort Donelson, then in October it was active in the fight at Perryville. Later the unit was assigned to D.S. Donelson's, M.J. Wright's, Vaughan's, and Palmer's Brigade. During April, 1862, it was consolidated with the 52nd Regiment and called the 51st Consolidated. However, the consolidation was declared illegal and during April, 1863, it was reorganized as the 51st and 52nd Consolidated Regiment and each unit kept separate records. It participated in many battles of the Army of Tennessee from Murfreesboro to Atlanta, returned to Tennessee with Hood, and was involved in the North Carolina Campaign.

The Tennessee 2nd Infantry Regiment Volunteers [also called the Irish Regiment] was comprised of men from Memphis, Tennessee, and completed its organization at that city in May, 1861. In July totaling 541 effectives, it moved to Fort Pillow. It reported 18 killed, 64 wounded, and 33 missing at Belmont and suffered heavy casualties at Shiloh. Later the unit was consolidated into four companies and merged into Smith's 5th Confederate Infantry Regiment.