Keith,

Here's a few notes on the 3rd which I found doing a Goggle Search - 3rd Tennessee Clack's.

The first depicts their battleflag with battles noted theron.

George Martin

http://campbellsvilletn.com/scv112/

"From the Flame of Battle to the Fiery Cross" a new history of the 3rd (Clack's) TN Vol. Infantry Regiment written by James Van Eldik

Participated in the battles of Fort Donelson, Chickasaw Bayou, Port Hudson, Raymond, Jackson, Chickamauga, Resaca, Franklin and Bentonville.

* Holding the Line : The Third Tennessee Infantry by Captain Flavel C. Barber and edited by Robert H. Ferrell. Originally published in 1994 by Kent State University Press, Kent, Ohio. The foundation of the book is the diaries of Flavel C. Barber, Captain of Companies A and K and later Major of the 3rd Tennessee until his death at Resaca, GA in 1864. The 3rd Tennessee was mustered in at Lynnville, in early 1861 and served at Fort Donelson, where it was captured in February, 1862. Barber was imprisoned, first at Camp Chase and afterward at Johnson's Island, where he began his narrative, recounting the events leading up to the fall of Fort Donelson and giving an excellent account of prison life at that stage of the war. After exchange, the regiment reorganized and played a key role in the Confederate victory at Chickasaw Bayou, which Barber describes in sufficient detail to warrant a reexamination of our understanding of the role of the 3rd Tennessee in that battle. General S.D. Lee's report of the battle leads us to believe that all of the few Confederate regiments present share equally in the repulse of William T. Sherman's Yankees. Captain Barber's account makes clear that the 3rd Tennessee bore the brunt of the fighting or at least played a more prominent role in turning back the Federals. The regiment subsequently served at Port Hudson on the Mississippi River, formed part of the army assembled by General Joseph E. Johnston to break the siege of Vicksburg, and fought in the Atlanta Campaign, where Barber was killed. Barber's diaries are well written descriptions of the battles and marches of the regiment, his experiences as a prisoner of war, and camp life. Particularly touching are his revealing passages that portray a lonesome husband longing to be reunited with his wife. A troop roster, compiled by Barber during the War, and the many footnotes provided by editor Ferrell add great value to this fine book. 281 pages, maps, roster, costs $ 25.00