Massachusetts's 7th congressional district
…of three counties and 7 municipalities: Middlesex County (3) Cambridge (part; also 5th), Everett, Somerville Norfolk County (2) Milton (part; also 8th), Randolph Suffolk County (2) Boston (part; also 8th), Chelsea Cities and towns in the district prior to 2013 1790s-1830s 1840s 1849: "The whole of…