Built in 1954, by Matton Shipyard Incorporated of Cohoes, New York (hull #307) as the LT-2095 for the United States Army.
In 1964, the tug was acquired by the United States Navy. Where she was designated as the YTM-752 (Shamokin). And, she was allocated to the 10th Naval District at San Juan, Puerto Rico.
In 1966, the United States Navy re designated the tug as the YTM-752 (Kewaunee).
In 1976, she was struck from the Naval register. The tug was then acquired by the Marine Power and Equipment Company of Seattle, Washington. Where she was rebuilt for commercial service and renamed as the Marine Discoverer.
In 1989, the tug was acquired by Marine Leasing Incorporated of Bellvue, Washington. Where she was renamed as the Joseph R.
In 2001, she was acquired by the Curtin Maritime Corporation of Long Beach, California. Where the tug was renamed as Seana C. And, she was rebuild and reconfigured with a second main engine, and kort nozzles.
In 2006, the tug was acquired by the Brusco Tug and Barge Company of Longview, Washington. Where she was renamed as Henry Brusco.
In 2018, she was traded to Olson Marine Incorporated of Ward Cove, Alaska. Where she was renamed as the Norman O.
In 2022, the tug was phased out of active service and was "laid up" at Vancouver, Washington.
Powered by two, EMD 12-645-E2 diesel engines. Turning two, stainless steel 88(in) by 109(in) by 89(in), fixed pitch propellers mounted in kort nozzles. She was a twin screw tug, rated at 3,000 horsepower.
The tug's capacities are 57,000 gallons of fuel, and 2000 gallons of potable water.
Her towing equipment consists of a single drum towing winch, mounted on the stern, outfitted with 2,500(ft) 2(in) towing wire. And a Pullmaster line winch mounted on her bow.
(Kyle Stubbs)