Dear Susan,
Perhaps here's the answer to your query:
McGUIRE, Cornelius N. Pvt./1st Ltn. *Enr. 29 Apr 61 at Lincoln Co., aged 22; promoted to 2nd Ltn 27 Apr 62; promoted to 1st Ltn. on 17 June 62; wounded at Sharpsburg, MD, 17 Sept 62; killed at Fredericksburg, VA, 13 Dec 62.*
Here are some links to histories of the 1st Tennessee Infantry (Turney's) - PAC (Provisional Army of the Confederacy).
http://www.tngennet.org/civilwar/csainf/csa1.html
http://www.keathleywebs.com/scv/1st_tenn.htm
http://www.tngenweb.org/franklin/frank.htm
And here's where he is buried:
http://www.rootsweb.com/~tngiles/tombstn/tomb048.htm
Hope this helps.
Jim Martin