Commissioned at Midland on June 6, 1944, she did not arrive at Halifax until August 16, owing to a layover en route at Shelburne for repairs. Following workups in Bermuda in September she sailed direct to St. John's, arriving on September 30, and was assigned to EG C-4. She left St. John's on October 5 for Londonderry to join the group, with which she was to serve for the balance of the war. Whitby left Londonderry for Canada in mid-June, 1945, and was paid off on July 16 and placed in reserve at Sorel. She was sold in 1946 for merchant service and reportedly renamed Bengo.