Built in 1891, by Peter Maglehan of Athens, New York as the Right Arm for Merritt-Chapman and Scott Corporation of New York, New York.

On April 23rd, 1898 the tug was acquired by the United States Navy. Where she was designated the Pontiac.

The tug was commissioned on July 1st, 1911 as the USS Pontiac. Named for Ottawa Native American Chief Pontiac. She was the second vessel to bear the name for the United States Navy Navy. During World War I, the vessel was allocated to efforts at New York, New York.

On April 11th, 1918 the United Stated Navy redesignated the tug as the Passaic.

On July 17th, 1920 the United Stated Navy redesignated the tug as the YT-20 (Passaic).

In 1921, she was struck from the Naval Register.

On July 25th, 1922 the tug was acquired by John Kantzler and Sons of Bay City, Michigan. Where she was renamed as the Right Arm.

In 1922, she was acquired by the McAllister Brothers Towing Company of New York, New York. Where the tug retained her name.

In 1923, the tug sank off of Atlantic City, New Jersey. She was a single screw tug, rated at 425 horsepower.

(NavSource Online)