List of Prime Ministers of Canada by longevity
Oldest living Prime Ministers of Canada

List of Prime Ministers of Canada by longevity

Section Title: Oldest living Prime Ministers of Canada
Table Section Text: None

Prime Minister	Became oldest living prime minister	Ceased to be oldest living prime minister	Age at start date	Age at end date	Duration (years, days)

John A. Macdonald	July 1, 1867	June 6, 1891	52 years, 171 days	76 years, 146 days	23 years, 340 days

John Abbott	June 6, 1891	October 30, 1893	70 years, 86 days	72 years, 232 days	2 years, 146 days

John Thompson	October 30, 1893	December 12, 1894	47 years, 354 days	49 years, 32 days	1 year, 43 days

Mackenzie Bowell	December 12, 1894	May 1, 1896	70 years, 350 days	72 years, 126 days	1 year, 141 days

Charles Tupper	May 1, 1896	October 30, 1915	74 years, 304 days	94 years, 120 days	19 years, 182 days

Mackenzie Bowell	October 30, 1915	December 10, 1917	91 years, 307 days	93 years, 348 days	2 years, 41 days

Wilfrid Laurier	December 10, 1917	February 17, 1919	76 years, 20 days	77 years, 89 days	1 year, 69 days

Robert Borden	February 17, 1919	June 10, 1937	64 years, 236 days	82 years, 349 days	18 years, 113 days

R.B. Bennett	June 10, 1937	June 26, 1947	66 years, 342 days	76 years, 358 days	10 years, 16 days

Arthur Meighen	June 26, 1947	August 5, 1960	73 years, 10 days	86 years, 50 days	13 years, 40 days

Louis St. Laurent	August 5, 1960	July 25, 1973	78 years, 186 days	91 years, 174 days	12 years, 354 days

John Diefenbaker	July 25, 1973	August 16, 1979	77 years, 310 days	83 years, 332 days	6 years, 22 days

Pierre Trudeau	August 16, 1979	September 28, 2000	59 years, 302 days	80 years, 346 days	21 years, 43 days

John Turner	September 28, 2000	Current oldest living prime minister	71 years, 113 days	Current oldest living prime minister	18 years, 208 days

Prime Minister	Became oldest living prime minister	Ceased to be oldest living prime minister	Age at start date	Age at end date	Duration (years, days)

Sentence(s)

Louis St. Laurent was the oldest to become Prime Ministers of Canada at the age of 78 years and 186 days.

final_sentence: Louis St. Laurent was the oldest to become Prime Ministers of Canada at the age of 78 years and 186 days.