William T. O'Neil

William Thomas O'Neil (February 7, 1850, in Brighton, Franklin County, New York – May 5, 1909, in St. Regis Falls, New York) was an American politician from New York.

He attended the common schools and Fort Edward Collegiate Institute. Then he engaged in the lumber business and farming. He lived in St. Regis Falls, a hamlet in the town of Waverly.

O'Neil was Supervisor of the town of Waverly in 1881; and a member of the New York State Assembly (Franklin Co.) in 1882, 1883, 1884 and 1885.

He was a member of the New York State Senate (34th D.) from 1907 until his death in 1909, sitting in the 130th, 131st and 132nd New York State Legislatures. He suffered a stroke, and had to be rolled into the Senate chamber in a wheel-chair in January and February 1909. In March, he became too ill to attend the legislative session, and died on May 5, 1909, at his home in St. Regis Falls.