Since this man was a colonel in the Army of Northern Virginia--a great deal of information is available. Anything specific?
For the basics, see:
http://members.tripod.com/~ardvscv/smaug96.html
For compiled service record, see:
http://history-sites.com/research/index.html
For mentions in the Official Records, see:
http://ehistory.osu.edu/osu/search/search_OR.cfm
For John Chapla's excellent regimental history, see:
http://www.civilwar-books.com/VR1-a.htm