The regiment spent the winter near Dalton, Georgia, except for one brief expedition in February, when it was part of a force started to re-enforce General Polk in Mississippi, but which was recalled on reaching Demopolis, Alabama. As part of Cheatham's Division, it participated in the Atlanta Campaign beginning in May, 1864. In this campaign, Major Blevins was killed May 27, and Lieutenant Colonel Johnson died of disease July 15, 1864. It then returned with General Hood to Tennessee, and lost its Colonel, Horace Rice, who was wounded and taken prisoner at the Battle of Franklin, November 30, 1864.

One anomalous note was found during this period. Major General W. S. Hancock, in a note to General Grant, dated August 16, 1864, stated "The provost marshal at Deep Bottom says that an officer from the enemy's lines opposite communicated with him to exchange papers this morning. He belonged to the 29th Tennessee and says that the 17th from the same state is with them. They belonged to Longstreet's Corps, but I do not find them on the memorandum furnished me of Field's Division." This was evidently an error, and the regiment was probably the 23rd Tennessee which was in that area at the time.

On December 10, 1864, Cheatham's Corps, Brown's Division, Vaughan's Brigade, commanded by Colonel William M. Watkins, was reported as composed of the llth/29th, commanded by Major John E. Biuns, and l2th/ 47th, l3th/Slst/52nd/l54th Tennessee Infantry Regiments. After the Battle of Nashville, the brigade moved to Carolina to join General Joseph E. Johnston. It arrived at Bentonville when the battle was nearly over, but in time to prevent the capture of General Johnston's headquarters by the Federals. At this time the brigade was commanded by Colonel William P. Bishop, of the 29th, and the llth/ 29th was commanded by Captain Franklin F. Tidwell.

In the final consolidation of Johnston's Army, the 29th formed Companies "E" and "H" of the 2nd Consolidated Tennessee Infantry Regiment, commanded by Lieutenant Colonel George W. Pease, composed of the llth/l2th/l3th/29th/47th/50th/51st/52nd/154th Tennessee Infantry Regiments which was paroled at Greensboro, North Carolina May 2, 1865.