Gentlemen,

Below is a capsule history of the 3rd Tennesseee (Vaughn's) Infantry.

Source: Tennesseans in the Civil War, Part 1.

http://www.tngenweb.org/civilwar/csainf/vaughn.html

This should get you started.

Respectfully,

Gerald D. Hodge, Jr.
War Between the States Historian
39th Georgia Volunteer Infantry Regiment
http://39thgavolinfrgt.homestead.com/39thHomepage.html