"Annual report. 1916-1917". HathiTrust. Interborough Rapid Transit Company. December 12, 2013. p. 22. Archived from the original on March 18, 2020. Retrieved September 5, 2016.
lunaimaging.com
nycma.lunaimaging.com
"Pine Street". New York City Department of Records and Informational Services. New York City Department of Finance. 1949–1951. Archived from the original on September 20, 2021. Retrieved September 19, 2021.
"Lay Out New Subway: P. S. C. Gives B. R. T. Tunnel From Old Slip to Clark Street Sent to Estimate Board Work on Lexington Avenue Line, Below 41st Street, Ordered Suspended for a Time". New-York Tribune. April 27, 1912. p. 6. ISSN1941-0646. ProQuest574907612.
"Subway Agreement Finally Reached: Both Interborough and B. R. T. Said to Be Satisfied With Conferrees' Solution of Problem". New-York Tribune. May 15, 1912. p. 1. ISSN1941-0646. ProQuest97294038.
"William Street Route Approved by Court: Appellate Division Authorizes Extension Despite Property Owners' Objections". New-York Tribune. February 1, 1913. p. 2. ISSN1941-0646. ProQuest575057514.
"Objects to Gas Mains on Trestles: Committee of Brokers Does Not Want Property Values Affected". New-York Tribune. November 22, 1914. p. C2. ISSN1941-0646. ProQuest575330801.
"Operation of New Subways Delayed: Opening of 7th and Lexington Ave. Lines Deferred to March by War". New-York Tribune. December 5, 1917. p. 16. ISSN1941-0646. ProQuest575790318.
"New 'H' System Brings Worst Subway Jam: Thousands Lost at Times Square Station as the Routes Are Changed Many Carried Far From Their Homes Shuttle Service Failure at 42d Street Adds Greatly to Confusion". New-York Tribune. August 2, 1918. p. 1. ISSN1941-0646. ProQuest575946310.
"50,000 Persons Use New Tube On First Day: Clark Street Tunnel of the West Side Subway Cuts Down the Congestion of Traffic From Brooklyn". New-York Tribune. April 16, 1919. p. 11. ISSN1941-0646. ProQuest576071281.
"I. R. T. Puts Silencers On Times Sq. Turnstiles: 10 Per Cent of Company's Fare Controls Already Equipped". New York Herald Tribune. February 1, 1931. p. 1. ISSN1941-0646. ProQuest1114165778.
"Transit Unification Completed As City Takes Over I. R. T. Lines: Systems Come Under Single Control After Efforts Begun in 1921; Mayor Is Jubilant at City Hall Ceremony Recalling 1904 Celebration". New York Herald Tribune. June 13, 1940. p. 25. ProQuest1248134780.
"Annual report. 1916-1917". HathiTrust. Interborough Rapid Transit Company. December 12, 2013. p. 22. Archived from the original on March 18, 2020. Retrieved September 5, 2016.
"Pine Street". New York City Department of Records and Informational Services. New York City Department of Finance. 1949–1951. Archived from the original on September 20, 2021. Retrieved September 19, 2021.
"Lay Out New Subway: P. S. C. Gives B. R. T. Tunnel From Old Slip to Clark Street Sent to Estimate Board Work on Lexington Avenue Line, Below 41st Street, Ordered Suspended for a Time". New-York Tribune. April 27, 1912. p. 6. ISSN1941-0646. ProQuest574907612.
"Subway Agreement Finally Reached: Both Interborough and B. R. T. Said to Be Satisfied With Conferrees' Solution of Problem". New-York Tribune. May 15, 1912. p. 1. ISSN1941-0646. ProQuest97294038.
"Objects to Gas Mains on Trestles: Committee of Brokers Does Not Want Property Values Affected". New-York Tribune. November 22, 1914. p. C2. ISSN1941-0646. ProQuest575330801.
"Operation of New Subways Delayed: Opening of 7th and Lexington Ave. Lines Deferred to March by War". New-York Tribune. December 5, 1917. p. 16. ISSN1941-0646. ProQuest575790318.
"New 'H' System Brings Worst Subway Jam: Thousands Lost at Times Square Station as the Routes Are Changed Many Carried Far From Their Homes Shuttle Service Failure at 42d Street Adds Greatly to Confusion". New-York Tribune. August 2, 1918. p. 1. ISSN1941-0646. ProQuest575946310.
"50,000 Persons Use New Tube On First Day: Clark Street Tunnel of the West Side Subway Cuts Down the Congestion of Traffic From Brooklyn". New-York Tribune. April 16, 1919. p. 11. ISSN1941-0646. ProQuest576071281.
"I. R. T. Puts Silencers On Times Sq. Turnstiles: 10 Per Cent of Company's Fare Controls Already Equipped". New York Herald Tribune. February 1, 1931. p. 1. ISSN1941-0646. ProQuest1114165778.
