Source:Fleming-history
From Pittsburgh Streets
George Thornton Fleming. History of Pittsburgh and Environs: From prehistoric days to the beginning of the American Revolution, vol. 1. American Historical Society, New York and Chicago, 1922. Google Books 7ctaAAAAYAAJ, ffQMAAAAYAAJ, S88wAQAAMAAJ, tzUafgt-eskC; HathiTrust 011262563; Historic Pittsburgh 01aee9405m; Internet Archive historypittsbur01compgoog, historypittsbur01socigoog, historypittsbur01yorkgoog.
