The battle was growing chaotic due to thick undergrowth and clouds of smoke, and units on both sides fought more and more individually with less direction from high-ranking officers. At 13:30, a brigade from Union Brigadier General Marcellus M. Crocker's division, commanded by Colonel John B. Sanborn, arrived on the field at move to support Logan's left. Two regiments from Crocker's division were also sent to aid Smith and Stevenson, as the 7th Texas was withdrawing. A Union regimental commander determined that the two new regiments were not needed, and the reinforcements took a reserve position. On the other end of the line, Union pressure forced the 50th Tennessee to retreat, which broke off contact between the 50th and the 10th and 30th Tennessee (Consolidated). Gregg sent the 10th and 30th Tennessee (Consolidated) to the center of the line; a gap between that unit and the 41st Tennessee existed.