Allegheny City, fourth ward. From official records and actual survey, under the direction of G.M. Hopkins, civil engineer, 320 Walnut St., Philada. E. Busch, Engraver, 320 Walnut, Philada. (1872)Atlas of the cities of Pittsburgh, Allegheny, and the adjoining boroughs. From actual surveys & official records, compiled & published by G.M. Hopkins & Co. 320 Walnut St., Philadelphia. 1872. Assistant surveyors: H.W. Hopkins, W.S. MacCormac, Edward Vansciver, Weston R. Smith, Samuel Huff, Robert Foust, L. Cunningham. Assistant publishers: Richard Clark, M.S. Converse, S.T.C. Bell, L.J. Richards, J.C. Martin, W.G. Carter, Isaac Borneman, James Wilson, A.R. Whipple. Engraved by Edward Busch, 320 Walnut St. Entered ... 1872 by G.M. Hopkins ... Washington D.C. F. Bourquin Lith. 320 Chestnut St. PhilaAllegheny ward 4

Chicago citation style
G.M. Hopkins & Co, Hopkins, Griffith Morgan, Busch, Edward. Allegheny City, fourth ward. From official records and actual survey, under the direction of G.M. Hopkins, civil engineer, 320 Walnut St., Philada. E. Busch, Engraver, 320 Walnut, Philada. (1872),Atlas of the cities of Pittsburgh, Allegheny, and the adjoining boroughs. From actual surveys & official records, compiled & published by G.M. Hopkins & Co. 320 Walnut St., Philadelphia. 1872. Assistant surveyors: H.W. Hopkins, W.S. MacCormac, Edward Vansciver, Weston R. Smith, Samuel Huff, Robert Foust, L. Cunningham. Assistant publishers: Richard Clark, M.S. Converse, S.T.C. Bell, L.J. Richards, J.C. Martin, W.G. Carter, Isaac Borneman, James Wilson, A.R. Whipple. Engraved by Edward Busch, 320 Walnut St. Entered ... 1872 by G.M. Hopkins ... Washington D.C. F. Bourquin Lith. 320 Chestnut St. Phila,Allegheny ward 4. 1872. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~28616~1120896. (Accessed December 15, 2018.)
APA citation style
G.M. Hopkins & Co, Hopkins, Griffith Morgan, Busch, Edward, (1872) Allegheny City, fourth ward. From official records and actual survey, under the direction of G.M. Hopkins, civil engineer, 320 Walnut St., Philada. E. Busch, Engraver, 320 Walnut, Philada. (1872),Atlas of the cities of Pittsburgh, Allegheny, and the adjoining boroughs. From actual surveys & official records, compiled & published by G.M. Hopkins & Co. 320 Walnut St., Philadelphia. 1872. Assistant surveyors: H.W. Hopkins, W.S. MacCormac, Edward Vansciver, Weston R. Smith, Samuel Huff, Robert Foust, L. Cunningham. Assistant publishers: Richard Clark, M.S. Converse, S.T.C. Bell, L.J. Richards, J.C. Martin, W.G. Carter, Isaac Borneman, James Wilson, A.R. Whipple. Engraved by Edward Busch, 320 Walnut St. Entered ... 1872 by G.M. Hopkins ... Washington D.C. F. Bourquin Lith. 320 Chestnut St. Phila,Allegheny ward 4. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~28616~1120896
MLA citation style
G.M. Hopkins & Co, Hopkins, Griffith Morgan, Busch, Edward. Retrieved from the Digital Public Library of America <https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~28616~1120896>.
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