In February 1865, detachments of the 54th U.S.C.T. were relieved from duty guarding the Little Rock to DuVall's Bluff rail road. At the surrender of the Confederate in the Trans-Mississippi on May 26, 1865, the 54th was stationed in Little Rock as part of a garrison force to oversee the end of guerrilla fighting and to aid in reconstruction. The regiment continued regular duty in the Little Rock area through 1866. The Regiment participated in the following actions:   Mustered out of Federal Service by companies between August 8 and December 31, 1866.