The Niagara International Championship was a tennis tournament held in Niagara-on-the-Lake, Canada between 1885 and 1923. The tournament was played on outdoor grass courts at the Queen's Royal Hotel and was held in the second half of August. In the final year, 1923, the tournament was held on the courts of the Clifton Hotel.
↑Ohnsorg, Roger W. (February 2011). Robert Lindley Murray: The Reluctant U.S. Tennis Champion; includes "The First Forty Years of American Tennis". Victoria, BC: Trafford On Demand Pub. p.225. ISBN978-1426945144.