"When Will Dual Subway Be Finished?: Completed Work Cost 188,332,000--unfinished Contracts Amount to 20,000,000 Two Bodies Responsible for Construction Lack Mutual Confidence and Team-work". New-York Tribune. January 5, 1919. p. D10. ISSN1941-0646. ProQuest575999620.
"Pushing Throng Christens Spur Of B. M. T. Tube: Hylan Runs the First Train From Brooklyn to 14th Street, Then Assails "Interests'" at Luncheon Yearns to Boss System Transit Commission Heads Remind Mayor Epithets Won't Solve Problems". The New York Herald, New York Tribune. July 1, 1924. p. 12. ISSN1941-0646. ProQuest1112998377.
"When Will Dual Subway Be Finished?: Completed Work Cost 188,332,000--unfinished Contracts Amount to 20,000,000 Two Bodies Responsible for Construction Lack Mutual Confidence and Team-work". New-York Tribune. January 5, 1919. p. D10. ISSN1941-0646. ProQuest575999620.
"Pushing Throng Christens Spur Of B. M. T. Tube: Hylan Runs the First Train From Brooklyn to 14th Street, Then Assails "Interests'" at Luncheon Yearns to Boss System Transit Commission Heads Remind Mayor Epithets Won't Solve Problems". The New York Herald, New York Tribune. July 1, 1924. p. 12. ISSN1941-0646. ProQuest1112998377.