Mile End - The coming of the railway

The transcontinental railway gave Mile End its first growth spurt and separate identity. In 1876, the Quebec, Montreal, Ottawa and Occidental Railway – a project vigorously promoted by Antoine Labelle and Louis Beaubien – came slicing through the area on its way from east-end Montreal to Sainte-Thérèse, Lachute, and Ottawa. This railway was bought in 1882 by the Canadian Pacific, and it was by this route that the first trains departed for the Prairies in 1885 and for Port Moody, British Columbia in June 1886 (extending to Vancouver in 1887). 

The first Mile End station building was erected in 1877 on the east side of Saint-Laurent Road, near what is now the intersection of Bernard Street. (A much larger station was built in 1911; it closed in 1931, when service was moved to the new Park Avenue Station (Jean-Talon), and was demolished in 1970 to make way for the Rosemont–Van Horne viaduct.)

In 1878, the village of Saint-Louis-du-Mile-End was incorporated, population 1319. Its territory consisted of the western third of Côte Saint-Louis: bounded on the west by the limit of Outremont (generally along Hutchison Street), on the south by what is now Mont-Royal Avenue, and on the east by a line running mostly just east of the current Henri-Julien Avenue. The northern border was north of present-day De Castelnau Street or just south of Jarry Park.

The second growth spurt of Mile End coincided with the introduction of electric tramway service in 1893; the area can be considered an example of a streetcar suburb. The agricultural and industrial exhibition grounds at the southwest of the village, near Mount Royal, were subdivided in 1899 for housing. The village became a town in 1895 and changed its name to simply Saint-Louis. Apart from a tiny street located just outside the town's northwestern limit, and (for its remaining years) the railway station, the name Mile End passed out of the official toponymy for close to a century, coming back into use as a municipal electoral district only in 1982.

The town of Saint-Louis built in 1905 a magnificent town hall on the northwest corner of Saint-Laurent and what is now Laurier Avenue; the building still serves as a fire hall and firefighters' museum. The town was annexed by the expanding city of Montreal on 29 May 1909,[20] taking effect as of 1 January 1910, and became Laurier Ward (quartier Laurier). Population growth had been explosive: in 1891, the village had 3537 residents; in 1911, after annexation, the ward's population was about 37,000.