The Tennessee 18th Cavalry Regiment was also called the 19th Regiment. It was organized in May, 1864, by consolidating six companies of Newsom's Tennessee Cavalry Regiment and four companies of Forrest's Alabama Cavalry Regiment, The unit was assigned to T.H. Bell's Brigade in the Department of Alabama, Mississippi, and East Louisiana. Its members were recruited in Hardeman, Madison, Henderson, and McNairy counties.

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 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 Georgia 6th Cavalry Battalion State Guards was formed in August 1863 to serve for six months as local defense in the northwest section of the state. The battalion was comprised of horse soldiers from Chattooga and Walker counties. The only verified engagement with the enemy is noted on January 22, 1864, at the "Battle of Subligna" in Chattooga County. As Sherman threatened in the spring of 1864, most of these men probably joined in with Wheeler's or Forrest's troops for the Atlanta and Carolinas campaign, but records are sparse.

The 16th Connecticut was formed in Hartford County, Connecticut, in July and August 1862. It was mustered into service August 24, 1862 and became part of Mr. Lincoln's Army of the Potomac. Three weeks later the regiment first saw action at the Battle of Antietam, Maryland as part of Burnside's Ninth Army Corps. Having loaded muskets for the first time only the day before the battle, the regiment suffered significant casualties at Antietam. It next saw action at Fredericksburg, Virginia in December 1862, then at the Siege of Suffolk, Virginia in April/May 1863. In 1864, the 16th Connecticut, then with the 18th Army Corps, was part of the Union garrison at Plymouth, North Carolina, and vigorously defended Plymouth against a Confederate combined land and naval attack April 17-20, 1864 led by General Robert F. Hoke, C.S.A. Outnumbered more than 5 to 1, with no means of escape or opportunity for reinforcements, the Union garrison at Plymouth was surrendered on April 20, 1864 by Brigadier General Henry W. Wessells.