Mimico became a police village in 1905 and the next year the Grand Trunk Railway's Mimico railway yards were opened. Mimico became a village in 1911 electing its first Village Reeve, Robert Skelton. The same year a second post office named 'Mimico Beach' was established to serve the southern half of Mimico, located on Lake Shore Road. Mimico became the smallest community to obtain a Carnegie Library in which the town council met at first. The first immigrants began to arrive in Mimico and at this time Etobicoke's first Catholic Church was built in Mimico, St. Leo's.