Loscocco served the 8th Middlesex District from 2001 until 2009, when he stepped down.

He was a Malden resident who represented the 16th Middlesex district for one term, from 1971 to 1973.

The 34th Middlesex district is heavily Democratic and the primary election is the key contest.

The remainder of the city, just over half, comprises the 27th Middlesex district, which does not extend outside Somerville.

From 1973 to 1977 he represented the 4th Middlesex District in the Massachusetts Senate.

In 1962 Hickey ran for Representative from the 3rd Middlesex District.

He has been a member of the Senate since 1995, representing the 1st Essex and Middlesex District.

He represented the Second Middlesex district from 1991 until his death in 2005, first as a Republican and later as a Democrat.

(Before 2003 she represented the Fifth Middlesex district.)

From 1953 to 1973, Lamson represented the 4th Middlesex District in the Massachusetts Senate.