"Mayor Takes 2,000 for a Ride ln Queens Subway Extension: Heads Civic Leaders in 10-Car Train Over Route to Kew Gardens That Opens at 7 A. M. Today; Warns of 15-Cent Fare if Unity Plan Fails The Mayor Brings Rapid Transit to Kew Gardens". New York Herald Tribune. December 31, 1936. p. 34. ISSN1941-0646. ProQuest1222323973.
"New York MPS Elmhurst Avenue Subway Station (IND)". Records of the National Park Service, 1785 - 2006, Series: National Register of Historic Places and National Historic Landmarks Program Records, 2013 - 2017, Box: National Register of Historic Places and National Historic Landmarks Program Records: New York, ID: 05000672. National Archives.
"R Train". January 13, 2015. Archived from the original on January 13, 2015. Retrieved July 12, 2016.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
"Mayor Takes 2,000 for a Ride ln Queens Subway Extension: Heads Civic Leaders in 10-Car Train Over Route to Kew Gardens That Opens at 7 A. M. Today; Warns of 15-Cent Fare if Unity Plan Fails The Mayor Brings Rapid Transit to Kew Gardens". New York Herald Tribune. December 31, 1936. p. 34. ISSN1941-0646. ProQuest1222323973.