Between 1883 and 1893, there were 13 separate annexations to the City of Toronto which brought the border of that city to the Humber River. In 1890, the Mimico Real Estate Security Company Ltd was formed to divide and sell lots in Mimico. This plan included the subdivision of Mr. Edward Stock's land as far north as the Stock's Side Road (an extension of Toronto's Queen Street, now the Queensway) and a cattle path he had established as a shortcut from Church St. (Royal York Rd.) to Lake Shore Road became Mimico Avenue.