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Lionel Pincus and Princess Firyal Map Division, The New York Public Library. "Lots & blocks shaded red belong to the Chicago Dock & Canal Co. " The New York Public Library Digital Collections. 1868. https://old-digitalcollections.nypl.org/items/e3434150-85c1-0135-057d-172e25ddd625
Lionel Pincus and Princess Firyal Map Division, The New York Public Library. "Lots & blocks shaded red belong to the Chicago Dock & Canal Co. " New York Public Library Digital Collections. Accessed September 29, 2026. https://old-digitalcollections.nypl.org/items/e3434150-85c1-0135-057d-172e25ddd625
Lionel Pincus and Princess Firyal Map Division, The New York Public Library. (1868). Lots & blocks shaded red belong to the Chicago Dock & Canal Co. Retrieved from https://old-digitalcollections.nypl.org/items/e3434150-85c1-0135-057d-172e25ddd625
<ref name=NYPL>{{cite web | url=https://old-digitalcollections.nypl.org/items/e3434150-85c1-0135-057d-172e25ddd625 | title=
(cartographic)
Lots & blocks shaded red belong to the Chicago Dock & Canal Co. , (1868)
|author=Digital Collections, The New York Public Library |accessdate=September 29, 2026 |publisher=The New York Public Library, Astor, Lenox, and Tilden Foundations}}</ref>