Alan,
Thank you for the information. If it is not too much trouble, the list of Alabama medical officers at Gettysburg would be most appreciated. Incidentally, Surgeon William F. Richardson treated both Federal and Confederate wounded while working at Camp Letterman, including the case of George W. Smith of Company K, 8th Alabama, after 7 August. I have also identified Dr. M. A. Ridgway who was connected with the 47th Alabama, perhaps as Assistant Surgeon.