Attleboro, ward 3, precinct B, ward 4, precincts A and B, ward 5, precincts A and B, ward 6, precincts A and B, Mansfield, Norton, Rehoboth and Seekonk, in the county of Bristol; and Dover, Foxborough, Medfield, Sharon, precincts 1, 4 and 5, and Walpole, in the county of Norfolk.