Statistics for occurrence #1 of “Lieutenant-Colonel A. G. O'Brien” in chapter 3, section c.3.16 of Southern Historical Society Papers, Volume 12.:
Tenth Georgia, Colonel W. C. Holt.
Fiftieth Georgia, Colonel P. McGlashan.
Fifty-first Georgia, Colonel E. Ball.
Fifty-third Georgia, Colonel James P. Simms.
Thirteenth Mississippi, Lieutenant-Colonel A. G. O'Brien .
Seventeenth Mississippi, Captain J. C. Cochran.
Eighteenth Mississippi, Colonel T. M. Griffin.
Twenty-first Mississippi, Colonel D. N. Moody.
Second South Carolina, Colonel J. D. Kennedy...
† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.