Source:Thurston-diffenbacher-1876

George H. Thurston and J. F. Diffenbacher. Directory of Pittsburgh and Allegheny for 1876–7: Embracing a general directory of the residences of citizens, full classified business directory, register of public institutions, benevolent societies and city governments, directory of the streets, secret societies, schools and churches. Thurston & Diffenbacher, Pittsburgh, 1876. Google Books 8dkCAAAAYAAJ; Historic Pittsburgh 31735038288480.

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• Street directory, pp. 6–15 (Google Books 8dkCAAAAYAAJ; Historic Pittsburgh 31735038288480)