[1] Sackville was commissioned into the Royal Canadian Navy on 30 December 1941 by Captain J. E. W. Oland, husband of the ship's sponsor.

[2] Her first commanding officer, Lieutenant W. R. Kirkland, RCNR was appointed on 30 December[3] but did not join Sackville until 2 January.

After rescuing the survivors from the sunken Greek ship Lily, Sackville was unable to re-locate her convoy, ONS 68.

Deprived of air cover by heavy fog, the convoy was attacked by two successive U-boat "wolfpacks" off the coast of Newfoundland.

U-43 survived but had to retreat to France for repairs with serious damage to its engines, compressors, a leaking hatch and a crewman with internal injuries.

[7][8] Sackville continued in her escort role until starting an extensive refit at Thompson Bros. Machinery Co. Ltd. in Liverpool, Nova Scotia in January 1943.

[13] The ship was transferred to the Canadian Naval Corvette Trust (now the Canadian Naval Memorial Trust) on 28 October 1983 and restored to her 1944 appearance (apart from minor details in her camouflage and the presence of the "barber pole" red and white pattern around her funnel which had been removed before 1944).

[15] Sackville makes her first appearance each spring when she is towed by a naval tugboat from HMC Dockyard to a location off Point Pleasant Park on the first Sunday in May to participate in the Commemoration of the Battle of the Atlantic ceremonies held at a memorial in the park overlooking the entrance to Halifax Harbour.

[16] In 1988, Sackville was designated a National Historic Site of Canada, due to her status as the last Flower-class corvette known to exist.

[17] On 4 November 1998, Canada Post issued a 45¢ stamp featuring HMCS Sackville as part of the Naval Vessels series.