Pictured as: the Isabel A. McAllister (McAllister Bros.) Photo by: Unknown
Built in 1918, by John H. Mathis and Company Shipbuilders of Camden, New Jersey as the Whistler for the United States Shipping Board.
In 1936, the tug was acquired by the McAllister Brothers Towing Company of New York, New York. Where she was renamed as the Isabel A. McAllister.
In 1964, she was dismantled. The tug was single screw, rated at 900 horsepower.