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 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 3rd Regiment, Tennessee Infantry (Union) was organized at Flat Lick, Ky., December, 1861, to February, 1862. Its first battles were at Cumberland Gap and it continued throughout the war in Tennessee and the Atlanta Campaign. It was mustered out after Nashville, so did no participate in the Carolinas Campaign. Companies of the Tennessee 3rd Infantry Regiment George W. Hutsell, Benjamin I. Bingham Co. "A." Thomas McNeish Co. "B." James R. McBath, John H. Cross Co. "C." John 0. Keeffe Co. "D." Enlisted men generally from Knox County. John C. Slover Co. "E." James L. Ledgerwood Co. "F." Enlisted men generally from Knox County. Henry G. Hodges Co. "C." Enlisted men generally from Blount County. James W. Adkerson (Adkisson), James G. Roberts Co. "H." Enlisted men generally from Knox County. Eli D. Willis, Washington L. Ledgerwood Co. "I." Enlisted men generally from Knox County. William M. Sawyers, William C. Haworth Co. "K."

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.

The Tennessee 3rd Infantry Regiment (Clack's) was organized May 16, 1861 at Lynnville, Giles County; mustered into Confederate service at Camp Trousdale, August 7, 1861; reorganized September 26, 1862. A report dated December 21, 1864, indicated that the 3rd and 18th Regiments of Tennessee Infantry had been consolidated and had a total of 17 men present. Finally this unit was merged into the 4th Consolidated Tennessee Infantry Regiment April 9, 1865 and paroled at Greensboro, North Carolina, May 1, 1865. This unit along with its sister regiments suffered great losses throughout the war. This roster presents one of the latest rosters which survive of the men who were finally paroled at Greensboro. Due to consolidations a list of counties for this regiment is impossible to ascertain. The 19th Tennessee Infantry Regiment formed Companies "C" and "H" of the 3rd Consolidated. These men were from Hamilton, Washington, Sullivan, Rhea, Knox, Polk, McMinn, and Hawkins Counties, Other counties represented from the men of the original 3rd and 18th regiments included Cannon, Sumner, Davidson, Rutherford, Cheatham, Bedford, Wilson, Giles, Pulaski, Lawrence, Maury, Williamson, Lewis, and Hickman.

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.

The Tennessee 47th Infantry Regiment was organized December 16, 1861; reorganized May 8, 1862; consolidated with the 12th Infantry Regiment October, 1862; formed part of Company "D", 2nd Consolidated Tennessee Infantry Regiment. The regiment fought throughout the war from Shiloh to Bentonville with the Army of Tennessee. It was paroled at Greensboro, North Carolina May 2, 1865. Companies of the Tennessee 47th Infantry Regiment -Company A enlisted at Troy, Obion County, James White was elected captain. -Company B enlisted at Donaldson's, near Gibson Wells, Gibson County. It consisted of men from Dyer and Gibson County and had William Gay as its captain -Company C enlisted at Dyersburg, Dyer County, Vincent G. Wynne was captain.( later lieutenant colonel) -Company D also enlisted at Dyersburg with William M. Watkins captain (later colonel) Company E enlisted at Dyersburg with George Miller as captain. -Company F enlisted at Humboldt, Gibson County, Jesse Booth was elected captain. -Company G enlisted at Trenton with Thomas Carthel, captain. -Company H enlisted in Kenton, on the Obion, Gibson County line. B. E. Holmes was captain. -Company I was from Troy, W.S. Moore was captain. -Company K enlisted at Yorkville, Gibson County and Green Holmes was captain.