Order of battle for Baton Rouge, Aug 5, 1862:

A P Thompson's Brigade
3rd Kentucky Regt
6th Kentucky Regt
7th Kentucky Regt
35th Alabama Regt

B H Helm's Brigade
4th Kentucky Regt
9th Kentucky Regt
49th Alabama Regt
4th Alabama Battn
31st Mississippi Regt

We can assume that most of not all of these units carried flags of General Breckinridge.