
Built in 1976, by Atlantic Marine Incorporated of Fort George Island, Florida (hull # 4161) as the Esso Santa Cruz for the Esso Shipping Company of Wilmington, Delaware.
The tug was registered in Aruba, Netherlands Antilles. Her primary function was the handling of large oil tankers.
In 1987, she was acquired by the Naviera Carralvo Company of Minatitljn, Mexico. Where she was renamed as the Santa Cruz. And was registered in San Nicolas, Netherlands Antilles.
In 1988, she was acquired by McAllister Towing and Salvage Incorporated of Montreal, Canada. Where she was reflagged Canadian, and was renamed as the Patricia B. McAllister.
On April 22nd 1991, the tug sunk in the St. Lawrence River near Pierre Niguet.
Powered by two, sixteen cylinder, General Motors EMD 16-645-E7 diesel engines. She was a twin screw tug, rated at 6,100 horsepower.
(Gerry Ouderkirk, Auke Visser)