Willis, Carol (March 1986). "Zoning and "Zeitgeist": The Skyscraper City in the 1920s". Journal of the Society of Architectural Historians. Vol. 45, no. 1. pp. 47–59. doi:10.2307/990128. JSTOR990128.
Balmori, Diana (December 1987). "George B. Post: The Process of Design and the New American Architectural Office (1868-1913)". Journal of the Society of Architectural Historians. Vol. 46, no. 4. p. 348. doi:10.2307/990273. JSTOR990273.
Albright, Edgar (July 1929). "Sketches Illustrating the Design Development of an Office Building, The Western Union Telegraph Building, Voorhees, Gmelin & Walker, Architects". The Architectural Record. Vol. 66. p. 1. hdl:2027/osu.32435022834204.
"New York Architects and Clay Products". Brick and Clay Record. Vol. 77. December 30, 1930. pp. 772–773. hdl:2027/mdp.39015086639518.
Cuthbert, T.P. (December 1928). "New and Colorful Brickwork". The Western Architect. Vol. 37. pp. 251–252. hdl:2027/mdp.39015021780385.
Walker, Ralph T. (November 20, 1926). "The Barclay-Vesey Building". The American Architect. Vol. 130, no. 2509. p. 397. hdl:2027/mdp.39015082487896.
jstor.org
Willis, Carol (March 1986). "Zoning and "Zeitgeist": The Skyscraper City in the 1920s". Journal of the Society of Architectural Historians. Vol. 45, no. 1. pp. 47–59. doi:10.2307/990128. JSTOR990128.
Balmori, Diana (December 1987). "George B. Post: The Process of Design and the New American Architectural Office (1868-1913)". Journal of the Society of Architectural Historians. Vol. 46, no. 4. p. 348. doi:10.2307/990273. JSTOR990273.
"Color Marks Telegraph Co. New Building: Nineteen Shades Make Exterior of Western Union New York Structure Eye-Arresting". The Hartford Courant. November 3, 1929. p. B4. ISSN1047-4153. ProQuest557766318.
"Hudson St. Block Front Bought by Western Union". The New York Herald, New York Tribune. September 25, 1924. p. 27. ISSN1941-0646. ProQuest1113276979.
"Buying in the Suburbs.: Golf Course Buyers Take Great Neck Estate Held at $135,000". The New York Times. September 26, 1924. p. 35. ISSN0362-4331. ProQuest103341538.
"Western Union Enlarges Big Down-Town Building: Buys Buildings on Thomas and Worth Streets, Abutting Its Hudson St. Block Front". The New York Herald, New York Tribune. November 22, 1924. p. 22. ISSN1941-0646. ProQuest1113224048.
"Western Union to Build Big Structure on Down-Town Block: Will Cover West Broadway Frontage Between Thomas and Worth Streets; Has Been Buying Property for the Last Six Months, According to Report". New York Herald Tribune. January 13, 1927. p. 41. ISSN1941-0646. ProQuest1113733277.
"The Western Union Adds to Its Realty: Telegraph Company Purchases Two More Flats on West Broadway Block". The New York Times. January 15, 1927. p. 26. ISSN0362-4331. ProQuest104278013.
"Western Union Co. Again Increases Realty Holdings". New York Herald Tribune. July 30, 1927. p. 22. ISSN1941-0646. ProQuest1113793677.
"4 Die as Steel Hits Scaffold in 22-Story Plunge: 3½ Tons of Girders Sweep Men From Ninth Floor of Western Union Structure". New York Herald Tribune. April 21, 1929. p. 1. ISSN1941-0646. ProQuest1111989165.
"Western Union Moves Headquarters After 55Yrs". New York Herald Tribune. August 30, 1930. p. 24. ISSN1941-0646. ProQuest1113700594.
"Retention of 'EI' Now Urged as Health Measure: I. R. T. Cites Letter From Western Union Chief at Hearing on 6th Ave. Line Forced to Retire as Fire Chief". New York Herald Tribune. September 30, 1930. p. 3. ISSN1941-0646. ProQuest1113223868.
"Western Union Sells Building At 60 Hudson St: Woodmen of World Insurance Takes Property in $12,500,000 Transfer". New York Herald Tribune. March 12, 1948. p. 36. ISSN1941-0646. ProQuest1327408512.
"Western Union Will Move Officers to New Jersey". The Wall Street Journal. November 8, 1971. p. 29. ISSN0099-9660. ProQuest133539751.
"Western Union Unit Sells Lease Interest For Total $24 Million". The Wall Street Journal. September 25, 1981. p. 18. ISSN0099-9660. ProQuest134553014.
Gabriel, Frederick (October 18, 1999). "Telecom companies seek buildings to call home". Crain's New York Business. Vol. 15, no. 342. p. 46. ProQuest219137426.
"Color Marks Telegraph Co. New Building: Nineteen Shades Make Exterior of Western Union New York Structure Eye-Arresting". The Hartford Courant. November 3, 1929. p. B4. ISSN1047-4153. ProQuest557766318.
"Hudson St. Block Front Bought by Western Union". The New York Herald, New York Tribune. September 25, 1924. p. 27. ISSN1941-0646. ProQuest1113276979.
"Buying in the Suburbs.: Golf Course Buyers Take Great Neck Estate Held at $135,000". The New York Times. September 26, 1924. p. 35. ISSN0362-4331. ProQuest103341538.
"Western Union Enlarges Big Down-Town Building: Buys Buildings on Thomas and Worth Streets, Abutting Its Hudson St. Block Front". The New York Herald, New York Tribune. November 22, 1924. p. 22. ISSN1941-0646. ProQuest1113224048.
"Western Union to Build Big Structure on Down-Town Block: Will Cover West Broadway Frontage Between Thomas and Worth Streets; Has Been Buying Property for the Last Six Months, According to Report". New York Herald Tribune. January 13, 1927. p. 41. ISSN1941-0646. ProQuest1113733277.
"The Western Union Adds to Its Realty: Telegraph Company Purchases Two More Flats on West Broadway Block". The New York Times. January 15, 1927. p. 26. ISSN0362-4331. ProQuest104278013.
"Western Union Co. Again Increases Realty Holdings". New York Herald Tribune. July 30, 1927. p. 22. ISSN1941-0646. ProQuest1113793677.
"4 Die as Steel Hits Scaffold in 22-Story Plunge: 3½ Tons of Girders Sweep Men From Ninth Floor of Western Union Structure". New York Herald Tribune. April 21, 1929. p. 1. ISSN1941-0646. ProQuest1111989165.
"Retention of 'EI' Now Urged as Health Measure: I. R. T. Cites Letter From Western Union Chief at Hearing on 6th Ave. Line Forced to Retire as Fire Chief". New York Herald Tribune. September 30, 1930. p. 3. ISSN1941-0646. ProQuest1113223868.
"Western Union Sells Building At 60 Hudson St: Woodmen of World Insurance Takes Property in $12,500,000 Transfer". New York Herald Tribune. March 12, 1948. p. 36. ISSN1941-0646. ProQuest1327408512.
"Western Union Will Move Officers to New Jersey". The Wall Street Journal. November 8, 1971. p. 29. ISSN0099-9660. ProQuest133539751.
"Western Union Unit Sells Lease Interest For Total $24 Million". The Wall Street Journal. September 25, 1981. p. 18. ISSN0099-9660. ProQuest134553014.