9 Oct, 1943
The British frigate HMS Duckworth and the Canadian corvette HMCS Kamloops together pick up 54 survivors from the American merchant Yorkmar that was torpedoed and sunk by the German submarine U-645 about 475 nautical miles south of Iceland in position 56º38'N, 20º30'W.

29 Jun, 1944
The German submarine U-988 was sunk in the English Channel west of Guernsey, in position 49º37'N, 03º41'W, by depth charges from the British frigates HMS Essington (A/Lt.Cdr. W. Lambert, RNVR), HMS Duckworth (Cdr. R.G. Mills, DSO, DSC and Bar, RN), HMS Domett (T/A/Lt.Cdr. S. Gordon, RNVR), HMS Cooke (Lt.Cdr. L.C. Hill, OBE, RD, RNR) and a Liberator aircraft (Sqdn 244/L). (see map)

14 Aug, 1944
The German submarine U-618 was sunk in the Bay of Biscay west of St. Nazaire, in position 47º22'N, 04º39'W, by depth charges from the British frigates HMS Duckworth and HMS Essington and by depth charges from a British Liberator aircraft (Sqdn. 53/G). (see map)

27 Feb, 1945
The German submarine U-1208 was sunk in the English Channel south-east of Isles of Scilly, in position 49º51'783N, 06º06'750W, by depth charges from the British frigates HMS Duckworth (A/Lt.Cdr. D. Jermain, DSC and Bar, RN) and HMS Rowley (Lt.Cdr. F.J.G. Jones, RNR). (see map)

26 Mar, 1945
The German submarine U-399 was sunk in the English Channel near Land's End, in position 49º56'N, 05º22'W, by depth charges from the British frigate HMS Duckworth (Lt. D. Jermain, DSC and Bar, RN). (see map)

29 Mar, 1945
The German submarine U-1169 was sunk in the English Channel south of Lizard Point, in position 49º58'N, 05º25'W, by depth charges from the British frigate HMS Duckworth (Lt. D. Jermain, DSC and Bar, RN). (see map)