The son of a former Richmond player from its days in the VFA, O'Neill was a member of the Tigers' legendary "Three Musketeers" backline of Bolger, Sheahan and O'Neill.
He played in four straight senior Grand Finals from 1931 to 1934, winning the premiership in 1932 and 1934.
He also played in Richmond's losing Grand Final side of 1940.
O'Neill represented Victoria on ten occasions, as State vice-captain for an Interstate Carnival, and was awarded Life Membership of the Richmond Football Club in 1939.
This Australian rules football biography of a person born in 1908 is a stub.