Built in 1998, by Marine Inland Fabricators Incorporated of Panama City, Florida (hull #WB248MIF0698) as the Emma Jane for Corman Construction Incorporated of Annapolis Junction, Maryland.
In 2018, the tug was acquired by Burrows Marine Incorporated of Webster, New York. Where she was renamed as the E.J. Coale.
In 2023, she was acquired by the Curtin Maritime Corporation of Long Beach, California. Where the tug was renamed as the Edna C.
In 2026, the tug was acquired by McMillen Incorporated of Boise, Idaho. Where she retained her name.
Powered by two, John Deere 6081 diesel engines. With Twin Disc MG-5075 reduction gears. She is a twin screw towboat, rated at 660 horsepower.
Her towing equipment consists of two, manual face winches.