"Quarterly Ridership Update: Third Quarter FY19" (PDF).
Massachusetts Bay Transportation Authority.
May 20, 2019.
p. 6.

Cudahy, Brian J. (1972).
Change at Park Street Under: The Story of Boston's Subways.
Brattleboro, Vermont, US: Stephen Greene Press.
ISBN 0-8289-0173-2.

End of service on Old Colony's Shawmut Branch
Belcher, Jonathan. "
Changes to Transit Service in the MBTA district" (PDF).
NETransit.

Massachusetts Bay Transportation Authority (January 28, 1981). "
Public Hearing Notice".
Boston Globe.
p. 65 – via Newspapers.com.

Hanron, Robert B. (August 26, 1965). "...
Meanwhile, Back on the Circle-T".
Boston Globe.
p. 10 – via Newspapers.com.

Byrnes, Mark (September 17, 2018). "
How Boston Got Its 'T'".
CityLab.
I remember sitting in my Cambridge office preparing for a meeting with the MBTA in which I would be proposing colored lines.
I had markers in front of me and I chose red for the line that went to Harvard since it’s a well-known institution whose main color is crimson.

"misc.transport.urban-transit | Google Groups".
Groups-beta.google.com.
Retrieved 2012-06-10.

Carr, Robert (July 29, 1965). "
MBTA Buys Old Colony Line For a South Shore Express".
Boston Globe – via Newspapers.com.

"MBTA Plans Downtown Tunnel".
Boston Globe.
November 20, 1965.
p. 4 – via Newspapers.com.

Sanborn, George M. (1992).
A Chronicle of the Boston Transit System.
Massachusetts Bay Transportation Authority – via MIT.

"MBTA South Bay Maintenance Center Contract".
Rollsign.
Vol.
 9 no.
 8/9.
Boston Street Railway Association.
August–September 1972 – via Tremont Street Subway NHL documentation.

Clarke, Bradley H. (1981).
The Boston Rapid Transit Album.
Cambridge, Mass.: Boston Street Railway Association.
p. 16.

Claffey, Charles E.; Richwine, David (August 2, 1975). "
132 hurt in rush-hour crash of 3 MBTA trains".
Boston Globe.
p. 1 – via Newspapers.com.

Hanron, Robert (November 7, 1965). "
MBTA to Unveil Master Plan Soon For 75-mph Service to Far Points".
Boston Globe.
p. 48 – via Newspapers.com.

"Frequently Asked Questions on the Fare Restructuring and Increase".
Massachusetts Bay Transportation Authority.
Archived from the original on September 30, 2007.

"Three New Subways Planned".
Boston Globe.
June 25, 1922.
p. 71 – via Newspapers.com.

Report on Improved Transportation Facilities in Boston.
Division of Metropolitan Planning.
December 1926.
hdl:2027/mdp.39015049422689.

"T puts last link in Red Line extension".
Boston Globe.
March 31, 1985.
p. 34 – via Newspapers.com.

Boston Elevated Railway; Massachusetts Department of Public Utilities (April 1945), Air View: Present Rapid Transit System – Boston Elevated Railway and Proposed Extensions of Rapid Transit into Suburban Boston – via Wikimedia Commons
Central Transportation Planning Staff (November 15, 1993). "
The Transportation Plan for the Boston Region – Volume 2".
National Transportation Library.
Archived from the original on July 3, 2015.

Casey, Gene R. (April 6, 1947). "
10 Electric-Train Lines Proposed by Board in Report to Legislature".
Boston Globe.
pp.
 1, 28 – via Newspapers.com. (
second section, third page) 
A Comprehensive Development Program for Public Transportation in the Massachusetts Bay Area.
Massachusetts Bay Transportation Authority.
1966.
pp.
 V-16 to V-19 – via Internet Archive.

Final Environmental Impact Statement: Red Line Extension – Harvard Square to Arlington Heights.
1.
Urban Mass Transportation Administration – via Internet Archive.

"Harvard-Alewife Extension".
Rollsign.
Vol.
 9 no.
 8/9.
Boston Street Railway Association.
August–September 1972 – via Tremont Street Subway NHL documentation.

Taylor, Jerry (March 7, 1977). "
MBTA weighs Arlington Red Line 'no' vote".
Boston Globe.
p. 3 – via Newspapers.com.

Turner, Robert L. (May 5, 1977). "
Arlington MBTA ban loses".
Boston Globe.
p. 24 – via Newspapers.com.

David McKay Wilson (June 16, 1979). "
Don't halt MBTA job, judge advised".
Boston Globe.
p. 15 – via Newspapers.com.

Crocket, Douglas S.; Hirshon, Paul (March 3, 1985). "
T dedicates new Harvard station".
Boston Globe – via Newspapers.com.

Lanson, Terry H. (October 13
"Quarterly Ridership Update: Third Quarter FY19" (PDF). Massachusetts Bay Transportation Authority. May 20, 2019. p. 6.
Cudahy, Brian J. (1972). Change at Park Street Under: The Story of Boston's Subways. Brattleboro, Vermont, US: Stephen Greene Press. ISBN 0-8289-0173-2.
End of service on Old Colony's Shawmut Branch
Belcher, Jonathan. "Changes to Transit Service in the MBTA district" (PDF). NETransit.
Massachusetts Bay Transportation Authority (January 28, 1981). "Public Hearing Notice". Boston Globe. p. 65 – via Newspapers.com.
Hanron, Robert B. (August 26, 1965). "...Meanwhile, Back on the Circle-T". Boston Globe. p. 10 – via Newspapers.com. 
Byrnes, Mark (September 17, 2018). "How Boston Got Its 'T'". CityLab. I remember sitting in my Cambridge office preparing for a meeting with the MBTA in which I would be proposing colored lines. I had markers in front of me and I chose red for the line that went to Harvard since it’s a well-known institution whose main color is crimson.
"misc.transport.urban-transit | Google Groups". Groups-beta.google.com. Retrieved 2012-06-10.
Carr, Robert (July 29, 1965). "MBTA Buys Old Colony Line For a South Shore Express". Boston Globe – via Newspapers.com.
"MBTA Plans Downtown Tunnel". Boston Globe. November 20, 1965. p. 4 – via Newspapers.com.
Sanborn, George M. (1992). A Chronicle of the Boston Transit System. Massachusetts Bay Transportation Authority – via MIT.
"MBTA South Bay Maintenance Center Contract". Rollsign. Vol. 9 no. 8/9. Boston Street Railway Association. August–September 1972 – via Tremont Street Subway NHL documentation.
Clarke, Bradley H. (1981). The Boston Rapid Transit Album. Cambridge, Mass.: Boston Street Railway Association. p. 16.
Claffey, Charles E.; Richwine, David (August 2, 1975). "132 hurt in rush-hour crash of 3 MBTA trains". Boston Globe. p. 1 – via Newspapers.com. 
Hanron, Robert (November 7, 1965). "MBTA to Unveil Master Plan Soon For 75-mph Service to Far Points". Boston Globe. p. 48 – via Newspapers.com.
"Frequently Asked Questions on the Fare Restructuring and Increase". Massachusetts Bay Transportation Authority. Archived from the original on September 30, 2007.
"Three New Subways Planned". Boston Globe. June 25, 1922. p. 71 – via Newspapers.com. 
Report on Improved Transportation Facilities in Boston. Division of Metropolitan Planning. December 1926. hdl:2027/mdp.39015049422689.
"T puts last link in Red Line extension". Boston Globe. March 31, 1985. p. 34 – via Newspapers.com. 
Boston Elevated Railway; Massachusetts Department of Public Utilities (April 1945), Air View: Present Rapid Transit System – Boston Elevated Railway and Proposed Extensions of Rapid Transit into Suburban Boston – via Wikimedia Commons
Central Transportation Planning Staff (November 15, 1993). "The Transportation Plan for the Boston Region – Volume 2". National Transportation Library. Archived from the original on July 3, 2015.
Casey, Gene R. (April 6, 1947). "10 Electric-Train Lines Proposed by Board in Report to Legislature". Boston Globe. pp. 1, 28 – via Newspapers.com. (second section, third page) 
A Comprehensive Development Program for Public Transportation in the Massachusetts Bay Area. Massachusetts Bay Transportation Authority. 1966. pp. V-16 to V-19 – via Internet Archive.
Final Environmental Impact Statement: Red Line Extension – Harvard Square to Arlington Heights. 1. Urban Mass Transportation Administration – via Internet Archive.
"Harvard-Alewife Extension". Rollsign. Vol. 9 no. 8/9. Boston Street Railway Association. August–September 1972 – via Tremont Street Subway NHL documentation.
Taylor, Jerry (March 7, 1977). "MBTA weighs Arlington Red Line 'no' vote". Boston Globe. p. 3 – via Newspapers.com. 
Turner, Robert L. (May 5, 1977). "Arlington MBTA ban loses". Boston Globe. p. 24 – via Newspapers.com. 
David McKay Wilson (June 16, 1979). "Don't halt MBTA job, judge advised". Boston Globe. p. 15 – via Newspapers.com. 
Crocket, Douglas S.; Hirshon, Paul (March 3, 1985). "T dedicates new Harvard station". Boston Globe – via Newspapers.com. 
Lanson, Terry H. (October 13
Red Line (MBTA)