Looking for a listing of units that were part of Joe Johnston's Army at Chickamauga. I can find much about the time frame prior to the fall of Vicksburg, but am having difficulty from July to September 1863.

In particular I want to confirm any artillery or infantry units from Mississippi. I am trying to confirm two deaths and one survivor of the battle that probably came from units established in Franklin, Jefferson Davis, Lawrence, or Amite counties.

The names are Will Allgood and Bill Adams, Killed; and Ben Adams who the writer said "came out safe." Most likely candidates are Willis Allgood of Hoskin's Brookhaven Light Artillery; W.N. Adams of Stanford's battery and Ben Mann of 1st Miss. Light Artillery (Withers). I did not find any men in the 7th Miss. or the 44th Miss. with these names so I am assuming they were from other units not in the same brigade.