Education
Born in Lisbon, New York, O'Neill went to Lawrence University and later Cornell University where he graduated from in 1871. He taught school and studied law at Albany Law School, graduated in 1873, and was admitted to the New York Bar.
lawyer politician member of the Wisconsin State Assembly
Born in Lisbon, New York, O'Neill went to Lawrence University and later Cornell University where he graduated from in 1871. He taught school and studied law at Albany Law School, graduated in 1873, and was admitted to the New York Bar.
In 1885, he served in the Wisconsin State Assembly as a Republican. O'Neill also served as District Attorney of Clark County, Wisconsin He practiced law with Spencer M. Marsh until he was appointed Wisconsin Circuit Court judge in 1897 serving until 1922. He died in Neillsville, Wisconsin.
He died on June 9, 1929, and is buried in Neillsville City Cemetery.