Commissioned at Kingston on December 1, 1943, Trentonian arrived at Halifax late in December and, after further fitting-out at Liverpool, N.S., and Halifax, left the latter port for Bermuda on February 18, 1944, to work up. Returning at the beginning of March, she was assigned to Western Approaches Command and left for Londonderry on April 23 to join. For three months she carried out escort duty in connection with the invasion and on June 13, while escorting the cable vessel St. Margaret off Normandy, she was shelled in error by a U.S. destroyer. The shell, fortunately a dud, passed through her engine room and did little damage. Late in August she transferred to EG 41 (RN) and, based at different times at Plymouth and at Milford Haven, escorted Channel convoys. While so engaged on February 22, 1945, she was torpedoed and sunk near Falmouth by U-1004, with the loss of six lives.
Torpedoed and sunk by U1004 near Falmouth, England, 22 Feb 45. Six of her ship's company were lost.