 Fredericton served during the Battle of the Atlantic from 1941 to 1945 . During 1942 she escorted oil tankers from the Caribbean to New York City . From 1943 to 1945 she escorted convoys in the Western Atlantic and then later on across the Atlantic to Northern Ireland . She was decommissioned on 14 July 1945 . Some question as to her final disposition lies with a possible error in Lloyd 's Register . Either she was sold for scrap in 1946 or ended up as a Panamanian @-@ flagged Japanese whaler which was used until 1979 . 
