The Western Route is the former B&M main line, on which the Haverhill Line now runs. There were once stations at Charlestown (at Gilmore Bridge), East Somerville (at Cambridge Street), Wellington (at 5th Street), Edgeworth (at Medford Street), Malden, Oak Grove, and Fells (at Stone Place) south of Wyoming. Charlestown was short-lived and almost no information about it exists. Wellington closed with the rest of the Medford Branch on October 1, 1957. East Somerville, Edgeworth, Oak Grove, and Fells closed on May 18, 1958 when the B&M shed most inner-core stations, leaving only skeleton service at Malden.
For reference, the New Hampshire Route (Lowell Line) had stations at East Cambridge (3rd Street), Prospect Hill (Washington Street; replaced Milk Row around 1887), Gilman Square, Somerville Junction, North Somerville (Broadway), Tufts College, Medford Hillside (North Street), and West Medford. East Cambridge and Prospect Hill closed on April 25, 1927, during expansion of the North Station yards. (Somerville Highlands, West Cambridge, and North Cambridge Junction on the Fitchburg Cutoff also closed then.) Gilman Square closed in the early 1930s, Somerville Junction probably in the early 1950s, and Tufts, North Somerville, and Medford Hillside on May 18, 1958.
The Fitchburg Route had stations at Charlestown (originally near Fitchburg Street, later Water Street), Somerville (Webster Avenue), Somerville (Park Street, originally at Kent Street), Porter, West Cambridge (split with Watertown Branch), Hill Crossing (Brighton Street), Belmont, and Waverley. Charlestown closed early in the streetcar era. Union Square and Somerville closed with the Watertown Branch in 1938. West Cambridge lasted until the 1950s; Hill Crossing probably until the 1930s. Belmont and Waverly closed on May 18, 1958, but reopened on March 4, 1974.
The Lexington Branch had four stations in Arlington: Lake Street, Arlington Centre, Brattles, and Arlington Heights. All closed in the 1958 cuts; Arlington Centre reopened in 1965, followed by Lake Street in 1968.
The Eastern Route had stations at East Somerville, Everett (Broadway), East Everett (2nd Street), Chelsea, Forbes, Revere, Oak Island, and West Lynn. I believe only East Somerville, Everett, Chelsea, and Forbes lasted until 1958. East Everett lasted until around 1950; Revere, Oak Island, and West Lynn probably closed earlier due to the BRB&L. The Saugus Branch had eight stations in Everett, Malden, and Revere; I'm not sure which lasted until 1958 and which didn't.
Closure dates of a lot of the southside stations aren't as well documented (possibly because there was no similar mass closure of inner-belt stations).
