Built in 1963, by Southern Shipbuilding of Slidell, Louisiana (hull #57) as the Margaret Moran for the Moran Towing Company of New York, New York.
The tugs engaged in towing U.S. Military Liberty Ships that had been converted to barges, along the Atlantic Coast of the Untied States. Another company called Midland Enterprises Incorporated of Cincinnati, Ohio held an interest in the operation along with the Moran Towing Company. Until 1965, when the tugs were sold.
In 1965, the tug remained with Midland Enterprises Incorporated of Cincinnati, Ohio. Where she was renamed as the Gale B.
In 1994, she was acquired by the Red Circle Transportation Company of Cincinnati, Ohio. A division of Midland Enterprises Incorporated of Cincinnati, Ohio. Where the tug retained her name.
In 2004, the tug was acquired by the Velvet Marine Company of New Orleans, Louisiana. Where she was renamed as the Guardian.
Powered by two, six cylinder, Caterpillar 3606 DITA diesel engines. Turning two, cast steel, fixed pitch, propellers. She is a twin screw tug, rated at 4,320 horsepower.
Her electrical service is provided by two, 60kW generator sets. The tug's capacities are 100,650 gallons of fuel, 5,547 gallons of water, and 80,836 gallons of ballast water.