South 12th Street

From Pittsburgh Streets
South 12th Street
Neighborhoods South Side Flats, South Side Slopes
Origin of name Sequential numbering up the Monongahela River
Denman Street (until 1869)
Origin of name Perhaps Thomas Denman
12th Street (1869–1881)
Origin of name Sequential numbering up the Monongahela River

South 12th Street was originally named Denman Street.[1][2][3][4][5][6][7] (The 1862 map of S. N. and F. W. Beers misspells it "Benman.")[8] It was named by Dr. Nathaniel Bedford, who laid out the town of Birmingham (today part of the South Side) in 1811.[9] The street appears in William Darby's 1815 map of Pittsburgh and vicinity.[1] Bedford had received a diploma in London on April 3, 1770, signed by William Osborn and Thomas Denman, certifying that Bedford had diligently attended their lectures on obstetrics;[10] it seems plausible that this Thomas Denman was the source of the street name.

In 1869, an ordinance of the Birmingham borough council numbered all of the north–south streets, and Denman Street became 12th Street.[11] The "South" prefix was added by a Pittsburgh city ordinance in 1881;[12] see South First Street for more details.

See also


  1. 1.0 1.1 Wm. Darby. Plan of Pittsburg and Adjacent Country. R. Patterson and W. Darby, Philadelphia, 1815. Historic Pittsburgh DARMAP0197, DARMAP0198. Reproduced in John W. Reps, The Making of Urban America: A history of city planning in the United States, p. 207, Princeton University Press, Princeton, N. J., 1965 (LCCN 63023414); and in Bruce J. Buvinger, The Origin, Development and Persistence of Street Patterns in Pittsburgh, Pennsylvania, p. 24. Also reproduced as "Plan von Pittsburg und Umgebungen" in Bernhard, Duke of Saxe-Weimar-Eisenach (Heinrich Luden, ed.), Reise Sr. Hoheit des Herzogs Bernhard zu Sachsen-Weimar-Eisenach durch Nord-Amerika in den Jahren 1825 und 1826, vol. II, following p. 200, Wilhelm Hoffmann, Weimar, 1828 (Internet Archive reisesrhoheitdes00bern, reisesrhoheitdes00inbern). [view source]darby
  2. Jean Barbeau and Lewis Keyon. Map of Pittsburgh and Its Environs. N. B. Molineux, Pittsburgh, 1830. Historic Pittsburgh DARMAP0576; [view source]barbeau
  3. Lewis Keyon. Map of Pittsburgh and Its Environs. Johnston & Stockton, Pittsburgh, 1835. Historic Pittsburgh DARMAP0577; 1835 layer at Pittsburgh Historic Maps ( [view source]keyon
  4. R. E. McGowin. Map of the Cities of Pittsburgh and Allegheny and of the Boroughs of South-Pittsburgh, Birmingham, East-Birmingham, Lawrenceville, Duquesne & Manchester etc. Schuchman & Haunlein, Pittsburgh, 1852. [view source]mcgowin-1852
  5. The Cities of Pittsburgh and Allegheny, with Parts of Adjacent Boroughs, Pennsylvania. 1855. Historic Pittsburgh DARMAP0089;; 1855 layer at Pittsburgh Historic Maps ( In George W. Colton, Colton's Atlas of the World: Illustrating physical and political geography, J. H. Colton & Co., New York, 1856 ( [view source]colton
  6. R. E. McGowin. Pittsburgh: Engraved from R. E. McGowin's map for Geo. H. Thurston. Wm. Schuchman & Bro., Pittsburgh, 1856. Historic Pittsburgh DARMAP0091. [view source]mcgowin-1856
  7. Atlas of the Cities of Pittsburgh, Allegheny, and the Adjoining Boroughs, p. 104. G. M. Hopkins & Co., Philadelphia, 1872.; 1872 layer at Pittsburgh Historic Maps ( [view source]hopkins-1872
  8. S. N. & F. W. Beers. Map of Allegheny Co., Pennsylvania. Smith, Gallup & Hewitt, Philadelphia, 1862. LCCN 2012592151; 1862 layer at Pittsburgh Historic Maps ( [view source]beers
  9. "Plan of the town of Birmingham." Recorded in Plan Book 1, p. 3. Allegheny County Recorder of Deeds 3778176. [view source]birmingham-town-plan
  10. E. W. Hassler. "Dr. Bedford's gift: The site of the Southside market house came from the old settler: He was prominent and wealthy: Owned much land south of the Monongahela river: His grave on Mount Oliver." Pittsburgh Post, June 18, 1893, p. 9. 87578785. Cut and pasted in [Pennsylvania county histories], vol. 3 (Allegheny County), pp. 118–121 (Internet Archive pennsylvaniacoun03unse_0), an untitled scrapbook of newspaper clippings from the State Library of Pennsylvania, call number 974.8 P38611. [view source]bedfords-gift
  11. "Birmingham Council." Daily Post (Pittsburgh), Mar. 3, 1869, [p. 1]. 86522458. [view source]birmingham-council
  12. "An ordinance establishing the names of avenues, streets, lanes and alleys of the City of Pittsburgh." Pittsburgh city ordinance, 1881, no. 33. Passed Feb. 28, 1881; approved Mar. 4, 1881. Ordinance Book 5, p. 212. In Municipal Record: Minutes of the proceedings of the Select and Common Councils of the City of Pittsburgh, for the year 1880, pp. 213–234, Herald Printing Co., Pittsburgh, 1881 (Internet Archive pghmunicipalrecord1880). [view source]ordinance-1881-33