Eastore, originally constructed as the United States Army Design 381 freighter FS-554, was acquired in 1944 and entered service with the Royal Canadian Navy in December of that year.

The ship remained in service with the Royal Canadian Navy until sold on 30 July 1964.

The vessel was powered by General Motors diesel engines driving two screws rated at 1,000 brake horsepower (750 kW).

[1] Transferred to the Royal Canadian Navy, the ship was renamed Eastore and commissioned on 7 December 1944.

The ship was used as a supply vessel on the east coast of Canada during World War II.