Pictured as: the Connor A. Gisclair (A.T. Cheramie) Photo by: Tomasello Letterio

Built in 1999, by Rodriquez Boat Builders Incorporated of Coden, Alabama (hull #191) as the Connor A. Gisclair for A.T. Cheramie Incorporated of New Orleans, Louisiana.

In 2007, the tug was acquired by the Marquette Transportation Company of Jefferson, Louisiana. Where she was renamed as the Mr. Connor.

In 2024, the Marquette Transportation Company renamed the tug as the Addi Grace.

Powered by three, Cummins KTA-19M2 diesel engines. With ZF 350-1 reduction gears, at a ratio of 7:1. Turning three, 65(in) by 72(in), fixed pitch, stainless steel propellers, mounted in kort nozzles. She is a triple screw tug, rated at 2,400 horsepower.

Her electrical service is provided by two, 40kW generator sets. Driven by two, 4B Cummins Diesel engines. The tug's capacities are are 24,000 gallons of fuel, 250 gallons of lube oil, and 6,000 gallons of potable water.

The towing equipment consists of single drum, SMATCO 44, towing winch. Outfitted with 1,500(ft) of 1.25(in) towing wire.