Built in 1976, by Verret Shipyard Incorporated of Plaquemine, Louisiana (hull #27) as the Miss Polly for Boaz Towing Incorporated of Plaquemine, Louisiana.
In 2014, the tug was acquired by the Kirby Corporation of Channelview, Texas. Where she retained her name.
In 2016, she was acquired by Settoon Towing Incorporated of Pierre Part, Louisiana. Where the tug retained her name.
In 2017, the tug was acquired by Savage Marine Services Incorporated of Salt Lake City, Utah. Where she was renamed as the Savage Pathfinder.
In 2020, Savage Marine Services Incorporated was acquired by the Kirby Corporation of Channelview, Texas. Where the tug was renamed as the Buckskin.
In 2021, the tug was acquired by M and P Barge Company Incorporated of Plaquemine, Louisiana. Where the tug was renamed as the G.W. Dunn.
Re powered in 1987, she is driven by two, GM 12V-92 diesel engines. With Twin Disc reduction gears, at a ratio of 6:1. Turning two, stainless steel, fixed pitch propellers. She is a twin screw towboat, rated at 1,000 horsepower.