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ISLAND SOVEREIGN

Built in 1944, by the Calumet Shipyard and Drydock Company of Chicago, Illinois (hull #158) as the LT-62 (MAJ. Richard M. Strong) for the United States Army.

The tug was later acquired by Island Tug and Barge Limited of Vancouver, British Columbia. Where the tug was renamed as the Island Sovereign.

In 1960, Island Tug and Barge was acquired by McAllister Towing of New York, New York. Where the company became a subsidy of McAllister Towing Limited Montreal of Montreal. Where the tug retained her name.

In 1969, Island Tug and Barge Limited was acquired by Genstar Limited of Vancouver, British Columbia. Where the tug initially retained her name.

In 1973, Genstar Limited became Seaspan Marine Incorporated of Vancouver, British Columbia. Where the tug was renamed as the Seaspan Sovereign. She was a single screw tug, rated at 2,200 horsepower.


  • Vessel Name: ISLAND SOVEREIGN
  • USCG Doc. No.: C192879
  • Vessel Service: TOWING VESSEL
  • IMO Number: 5164916
  • Trade Indicator: Coastwise Unrestricted
  • Hull Material: STEEL
  • Hull Number: 158
  • Ship Builder: CALUMET SHIPYARD AND DRYDOCK COMPANY
  • Year Built: 1944
  • Length: 114.5
  • Hailing Port: VICTORIA, BC.C
  • Hull Depth: 18.3
  • Hull Breadth: 29.8
  • Gross Tonnage: 393
  • Net Tonnage: 117
  • Owner:
    SEASPAN ULC
    10 PEMBERTON AVE.
    NORTH VANCOUVER, CANADA
    V7P 2R1
  • Previous Vessel Names:
    LT-62 (MAJ. Richard M. Strong), Island Sovereign
  • Previous Vessel Owners:
    United States Army, Island Tug and Barge Ltd., McAllister Towing Ltd. of Montreal, Genitor Ltd.