Source:Diffenbacher-1891

J. F. Diffenbacher. J. F. Diffenbacher's Directory of Pittsburgh and Allegheny Cities, for 1891: Embracing a general directory of residences of citizens, full classified business directory, register of public institutions, benevolent societies, and city government; directory of the streets, secret societies, schools and churches, thirty-sixth annual issue. J. F. Diffenbacher, Pittsburgh, 1891. Historic Pittsburgh 31735055723229.

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• Street directory, pp. 33–54 (Historic Pittsburgh 31735055723229).