The USS Bancroft (DD-256) was a Clemson-class destroyer built for the United States Navy, launched on March 21, 1919, by Bethlehem Shipbuilding Corporation's Fore River Shipyard in Quincy, Massachusetts. Sponsored by Miss Mary W. Bancroft, a great-granddaughter of George Bancroft, the ship was commissioned on June 30, 1919. As a Clemson-class vessel, she featured typical design elements of her class, which included a streamlined hull, four funnels, and armament suitable for fleet duties, although specific dimensions are not detailed in the provided content. Initially, Bancroft joined the Atlantic Fleet, engaging in fleet training activities until she entered reserve status on November 26, 1919. She was decommissioned at Philadelphia on July 11, 1922. The destroyer was later recommissioned on December 18, 1939, and served with the Atlantic Squadron along the U.S. East Coast until her decommissioning at Halifax, Nova Scotia. In 1940, Bancroft was transferred to Great Britain under the destroyer-land bases exchange, and she was allocated to the Royal Canadian Navy, where she was renamed HMCS St. Francis (I93). Named after the St. Francis River, she departed Halifax on January 15, 1941, and arrived in Scotland on January 26. During her service in the Battle of the Atlantic, St. Francis was actively involved in escort duties, including convoy protection for transatlantic routes. Notably, on May 20, she rescued survivors from the torpedoed steamship Starcrose. She also participated in convoy escort missions to the Middle East and later joined the Newfoundland Escort Force. Between 1941 and 1943, HMCS St. Francis made multiple attacks on enemy submarines while escorting numerous convoys, including ON 95, SC 85, ON 105, HX 197, and ON 116, operating with various Escort Groups. She later served in the Western Approaches and the Western Local Escort Force, based out of Londonderry Port and Halifax, respectively. From early 1944, her role shifted to training duties at Digby, Nova Scotia. The vessel was declared surplus on April 1, 1945, and on July 14, 1945, while under tow to Baltimore for scrapping, she suffered a collision with the collier Windward Gulf in fog near Buzzards Bay. The collision caused significant hull damage, and the USS Bancroft sank in roughly 60 feet of water approximately two miles off Acoaxet, with no loss of life. Her service history highlights her transition from a U.S. Navy vessel to a vital convoy escort in the Battle of the Atlantic under Canadian command, underscoring her maritime significance during World War II.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.