Statistics for occurrence #1 of “Brigadier-General Polk” in chapter 7, page 111 of James D. Porter, Confederate Military History, a library of Confederate States Military History: Volume 7.1, Tennessee:

...ield was abandoned by the commanding general and two of his corps commanders, Crittenden and McCook. Thomas held the Federal left until his line of works was assaulted and carried by the brigade of Brigadier-General Polk , and until Bushrod Johnson flanked and passed to the rear of Gordon Granger; about that time Kelly's brigade of Preston's division had captured two entire regiments of Granger's, when the enemy fled ...
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