The Union forces established a pontoon bridge near Bayou Fourche, and crossed to the south side of the very low Arkansas River. With his works on the north side of the river now flanked, Price was forced to abandon the city on September 10, after a brief engagement at Bayou Fourche. Price's Army withdrew in the direction of Rockport. Colonel A. T. Hawthorn took command of the brigade in the fall of 1863 and Colonel John Cocke took command of the regiment. The regiment spent the winter of 1863–1864 in Camden, Arkansas.