Built in 1970, by Halter Marine Incorporated of Lockport, Louisiana (hull #209) as the Mister Chris for the Jackson Marine Corporation of Houston, Texas.
The Jackson Marine Corporation was owned by the Halliburton Corporation of Houston, Texas. The company owned a total of ninety vessels. Consisting mainly of offshore tugs, and supply vessels. With some chemical transport and well stimulation vessels.
In 1985, Zapata Marine Service, Gulf Fleet Marine Incorporated, and Jackson Marine Services merged to form Zapata Gulf Marine Service Incorporated of Houston, Texas. Where the tug retained her name.
In 1992, Zapata Gulf Marine Incorporated merged with Tidewater Marine Incorporated of New Orleans, Louisiana. Where the tug retained her name.
In 1998, the tug was acquired by the Metropolitan Marine Transportation Incorporated of Staten Island, New York. Where she was renamed as the Pegasus.
In 2006, she was acquired by Winslow Marine Incorporated of Falmouth, Maine. Where the was renamed as the Peggy Winslow.
She is a twin screw tug, rated at 1,700 horsepower.
(Captain Eric Takakjian, Kyle Stubbs)