
Built in 1941, by the Liberty Dry Dock Company of Brooklyn, New York (hull #38) as the Edward Card for the Card Towing Company of Norfolk, Virginia.
In 1946, the tug was acquired by the McAllister Brothers Towing Company of New York, New York. Where she was renamed as the Peter B. McAllister.
In 1965, the tug was acquired by Thames River and New London Harbor Towing Company of New London, Connecticut. Where she was renamed as the Groton.
In 1976, she was acquired by East Coast Tender Services Incorporated of Sea Bright, New Jersey. Where the tug was renamed as the Bertha M.
In 1995, the tug was acquired by the Richards Marine Service Incorporated of Charleston, South Carolina. Where she was renamed as the Dianne Richards.
In 2004, she went out of documentation. Her current, and or final disposition is unknown.
She was a single screw tug, rated at 800 horsepower.