Named for Major General Arthur St. Clair (1737–1818). See also Sixth Street.
Miller, Annie Clark. Early Land Marks and Names of Old Pittsburgh: An address delivered before the Pittsburgh Chapter Daughters of the American Revolution at Carnegie Institute, Nov. 30, 1923. Pittsburgh Chapter Daughters of the American Revolution, 1924, p. 27. Historic Pittsburgh 00awn8211m; Internet Archive earlylandmarksna00mill.