61st Regiment, Tennessee Mounted Infantry (Pitts') (81st Infantry)
The 61st Regiment, Tennessee Mounted Infantry (Pitts')(81st Infantry)(also called 81st Regiment) was organized at Henderson Mills, Tennessee, during October, 1862. At Georgia where the unit disbanded during the spring of 1865. 
Companies in this Regiment with the Counties of Origin
Men often enlisted in a company recruited in the counties where they lived though not always. After many battles, companies might be combined because so many men were killed or wounded. However if you are unsure which company your ancestor was in, try the company recruited in his county first.
- Company A - Captain I. Nathan Dodd (to major) - Enrolled Rheatown, Greene County.
- Company B - Captain William Francis Sturm - Enrolled Rogersville, Hawkins County.
- Company C - Captains James W. Jackson, William J. Johnson, Elijah Scott - Enrolled Greene County.
- Company D - Captain J.C. Gallaher - Enrolled Henderson's Mills, Greene County.
- Company E - Captains James P. Snapp (to major), L.H. Denny - Enrolled Blountville, Sullivan County.
- Company F - Captain Jacob M. Alexander - Enrolled Jossy Creek, Jefferson County.
- Company G - Captain Frank M. Jackson - Enrolled Moristown, Grainger County, now Hamblen County.
- Company H - Captain S.E. Mitchell - Enrolled Claiborne County.
- Company I - Captain William N. Bewley - Enrolled Varrensburg, Greene County.
- Company K - Captain Samuel H. Kelton - Enrolled Zollioffer (now Bluff City), Sullivan County.
- 2nd Company H - Captain Jesse B. Bundren - Enrolled Zollioffer (now Bluff City), Sullivan County. 
- Beginning United States Civil War Research gives steps for finding information about a Civil War soldier or sailor. It covers the major records that should be used. Additional records are described in 'Tennessee in the Civil War' and 'United States Civil War, 1861 to 1865' (see below).
- National Park Service, The Civil War Soldiers and Sailors System, is searchable by soldier's name and state. It contains basic facts about soldiers on both sides of the Civil War, a list of regiments, descriptions of significant battles, sources of the information, and suggestions for where to find additional information.
- Tennessee in the Civil War describes many Confederate and Union sources, specifically for Tennessee, and how to find them.. These include compiled service records, pension records, rosters, cemetery records, Internet databases, published books, etc.
- United States Civil War, 1861 to 1865 describes and explains United States and Confederate States records, rather than state records, and how to find them. These include veterans’ censuses, compiled service records, pension records, rosters, cemetery records, Internet databases, published books, etc.
- Lindsley, John B. The Military Annals of Tennessee: Confederate, First Series; Embracing a Review of Military Operations, with Regimental Histories and Memorial Rolls, Compiled from Original and Official Sources. 1886. Reprint. Spartanburg, South Carolina: Reprint Co., 1974. (Family History Library book 976.8 M2L.) Digital versions at Ancestry ($); Internet Archive. A brief history and memorial rolls of the 61st Tennessee Infantry begin on page 573.
- Tennesseans in the Civil War, 61st Tennessee Infantry Regiment, (accessed 22 Oct 2011).
- The Sixty-first Tennessee (Confederate) Regiment, a brief history, (accessed 29 Dec 2011).