the brigades of Vaughn, Barton, and Gregg from Grenada.
Early on the 28th one of Vaughn's regiments was sent to reenforce Lee, and another to reenforce Barton; and thus Vaughn was left with only one regiment to protect the immediate rear of the citve occupied Barton and Gregg at the mound, sand-bar, or dry lake, while the divisions of Morgan and Steele would have held Lee at Chickasaw.
In his Memoirs (I., 290), General Sherman says:
On reconnoitering the front in person, I became satis, while Lindsey and Sheldon, by threatening to bridge McNutt Lake, would prevent the enemy (under Barton) from reenforcing Lee. By some misunderstanding — a fortunate one, I think, as it turned out--four of Thayer's regiments diverged to the right, batteries, that of the latter commanded by Lieutenant Tarleton.
About 10 o'clock a furious cannonade was opened on General Lee's lines.
This ceased about 11 o'clock, when a whole brigade — about six thousand strong, understood to have been Brig