General William S. Harney assumed command of the Department of Texas and ordered Major Ripley A. Arnold (Company F, Second United States Dragoons) to find a new fort site near the West Fork and Clear Fork. On June 6, 1849, Arnold, advised by Middleton Tate Johnson, established a camp on the bank of the Trinity River and named the post Camp Worth in honor of the late General Worth. In August 1849, Arnold moved the camp to the north-facing bluff, which overlooked the mouth of the Clear Fork of the Trinity River. The United States War Department officially named the post Fort Worth on November 14, 1849.