Following completion of that occupation troop lift, "Duplin" proceeded to Mitsugahama Roads to await further assignments; assigned thence to Commander, Western Sea Frontier, the ship embarked homeward-bound officers and men in the Matsuyama area, then sailed for Nagoya on 6 November 1945, arriving the following day. Embarking another large contingent of U.S.-bound men, the attack cargo vessel sailed for San Francisco, California, on 9 November. Re-routed to Seattle, Washington, during the return trip, "Duplin" reached Port Townsend, Washington, as part of the "Magic Carpet" operation on 20 November, "safely and expeditiously delivering happy personnel to the welcome shore of their beloved United States of America."