Source:Thurston-1856
From Pittsburgh Streets
George H. Thurston. Directory for 1856–'57, of Pittsburgh and Allegheny Cities, Birmingham, East Birmingham, South & West Pittsburgh, Temperanceville, Manchester, Duquesne and Lawrenceville Boroughs, East Liberty, and Parts of Pitt and Collins Townships. George H. Thurston, Pittsburgh, 1856. Google Books HwYuAAAAYAAJ; HathiTrust 011562263; Historic Pittsburgh 31735038289074.
- Map of Fort Pitt in 1795, preceding p. iii (Historic Pittsburgh 31735038289074)
- Street directory, Allegheny, p. xxii (Google Books HwYuAAAAYAAJ; HathiTrust hvd.hn46ja; Historic Pittsburgh 31735038289074)
- Street directory, Pittsburgh, pp. xxv–xxvi (Google Books HwYuAAAAYAAJ; HathiTrust hvd.hn46ja; Historic Pittsburgh 31735038289074)