History of King's Highway 123 (#1):
King's Highway 123 was a short highway which served as an eastern entrance route into St. Thomas, via Wellington Street, Fairview Avenue and Sinclair
Avenue. The highway connected to Highway 3 between the Michigan Central Railway and Centennial Road on the eastern side of St. Thomas. The highway's
western terminus was at the St. Thomas City Limit, which at that time was located approximately where First Avenue exists today. The highway was first
assumed into the Ontario Highway system on June 1, 1934, although the King's Highway 123 designation was not assigned until 1955. It is not certain what
route number, if any, was assigned to this highway prior to the assignment of the Highway 123 designation in 1955. The highway was decommissioned on April
15, 1957. A different, unrelated Highway 123 existed in North Bay between 1960 and 1974.
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