USS Bagley (DD-185) - As HMS St. Mary's

As HMS St. Mary's

She was renamed HMS St. Mary's and arrived at Belfast, Northern Ireland, 8 October 1940. Assigned to the permanent escort force of the 1st Minelaying Squadron, she arrived on the west coast of Scotland 31 October and took part in some of the early minelaying operations in Denmark Strait, between Iceland and Greenland. She also escorted a number of convoys. During 1941 she took part in most of the Squadron's minelaying operations and rendered service in the defense of shipping. On 29 August 1941 she was in a collision with the transport Royal Ulsterman off the west coast of Scotland and was in Salford Docks until December.

St. Mary's carried out minelaying and shipping defense duties in 1942 and 1943. In February 1944 she was paid off in the Tyne and remained there until the end of the war, when she was scrapped.