I responded to a similar question on the Tennessee board in December 2008 and you may want to check it out for some additional information.

http://history-sites.com/cgi-bin/bbs53x/tncwmb/webbbs_config.pl?read=6620

Respectfully,

Gerald D. Hodge, Jr.
M.A. Military History - Civil War Concentration.
War Between the States Historian
Historian: 39th Georgia Volunteer Infantry Regiment