Kenneth J. Donnelly is the Massachusetts state senator for the Fourth Middlesex district, which includes his hometown of Arlington and several other cities. He is a Democrat who has served since 2009. Donnelly graduated from the University of Massachusetts Amherst with a BA in Labor Studies. He is a retired lieutenant with the Lexington Fire Department in Lexington, Massachusetts.
- "Member Profile – Kenneth J. Donnelly". The General Court. 2011. Retrieved January 12, 2012.
- Metzger, Andy (September 4, 2008). "KEN DONNELLY: Education Reform". The Arlington Advocate (GateHouse Media, Inc.).
- Robert Rizzuto (June 17, 2014). "Democrat Don Berwick's gubernatorial campaign endorsed by state Senators Dan Wolf, Ken Donnelly". MassLive Politics. Retrieved August 18, 2014.
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