Lyon's Guard

Our former PM watches closely over The Hill. William Lyon Mackenzie King, PC, LL.B, Ph.D, MA, BA (December 17, 1874 – July 22, 1950) was the tenth Prime Minister of Canada from December 29, 1921, to June 28, 1926; September 25, 1926, to August 7, 1930; and October 23, 1935, to November 15, 1948. With over 21 years in the office, he had the longest combined time in the Prime Minister position in British Commonwealth history. In 1999, King was ranked by historians to be the greatest of Canada's Prime Ministers. (Granatstein & Hillmer, Prime Ministers: Ranking Canada's Leaders) He is commonly known either by his full name or as Mackenzie King. (Mackenzie was one of his given names, not part of his surname.) In his public career he was never referred to as simply "William King".