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Framberger, David J. (1978). "Architectural Designs for New York's First Subway"(PDF). Historic American Engineering Record. pp. 1–46 (PDF pp. 367–412). Archived(PDF) from the original on January 17, 2021. Retrieved December 20, 2020. This article incorporates text from this source, which is in the public domain.
"Work on City Hall Loop Begins". New-York Tribune. March 29, 1901. p. 5. Archived from the original on May 10, 2022. Retrieved May 10, 2022 – via newspapers.com .
"The City Hall Loop". The New York Times. March 29, 1901. p. 2. ISSN0362-4331. Archived from the original on May 10, 2022. Retrieved May 10, 2022 – via newspapers.com .
"Death at City Hall Loop". New-York Tribune. May 12, 1901. p. 15. Archived from the original on May 10, 2022. Retrieved May 10, 2022 – via newspapers.com .
"City Hall "Loop" Blocked". New-York Tribune. August 4, 1901. p. 4. Archived from the original on May 2, 2022. Retrieved January 6, 2021 – via newspapers.com .
"Subway Travel On With Rush". New-York Tribune. October 28, 1904. pp. 1, 5. Archived from the original on May 10, 2022. Retrieved May 10, 2022 – via newspapers.com .
"Subway Trains in Fall". New-York Tribune. March 22, 1903. pp. 38, 39. Archived from the original on May 10, 2022. Retrieved May 10, 2022 – via newspapers.com .
Hood, Clifton (1978). "The Impact of the IRT on New York City"(PDF). Historic American Engineering Record. pp. 146–207 (PDF pp. 147–208). Archived(PDF) from the original on January 17, 2021. Retrieved December 20, 2020. This article incorporates text from this source, which is in the public domain.
Guse, Clayton (April 15, 2019). "This 1904 Station Is a Trip!". New York Daily News. p. 10. Archived from the original on May 14, 2022. Retrieved May 14, 2022 – via newspapers.com .
"B'klyn Bridge Next Stop". New York Daily News. December 27, 1945. p. 450. Archived from the original on May 15, 2022. Retrieved May 15, 2022 – via newspapers.com .
"IRT Closes Old Station". New York Daily News. January 1, 1946. p. 417. Archived from the original on May 15, 2022. Retrieved May 15, 2022 – via newspapers.com .
Siegel, Joel (February 1, 1995). "TA May Unveil Wheel Treasure". New York Daily News. p. 674. Archived from the original on May 14, 2022. Retrieved May 14, 2022 – via newspapers.com .
Siegel, Joe (November 24, 1995). "Museum's next stop is City Hall". New York Daily News. p. 1127. Archived from the original on May 14, 2022. Retrieved May 14, 2022 – via newspapers.com .
Rein, Lisa (May 13, 1999). "Mayor Won't Let Transit Museum Roll". New York Daily News. p. 126. Archived from the original on May 14, 2022. Retrieved May 14, 2022 – via newspapers.com .
"The City Hall Loop". The New York Times. March 29, 1901. p. 2. ISSN0362-4331. Archived from the original on May 10, 2022. Retrieved May 10, 2022 – via newspapers.com .
"I. R. T. Closing Old City Hall Station Monday: Lexington Av. Line Stop, One of First in System, to Shut at End of Year". New York Herald Tribune. December 27, 1945. p. 17. ISSN1941-0646. ProQuest1313594585.
"Just Two Years Have Elapsed Since Work Began on the Rapid Transit Subway, and It Subway, and Now It is Expected That Trains Will Be Running Next October: Subway Trains in Fall Bright Hopes for Underground Rapid Transit in October". New-York Tribune. March 22, 1903. p. B8. ISSN1941-0646. ProQuest571367858.