John A. Macdonald and John Thompson were the only Prime Ministers to die in office.
Three Prime Ministers have died outside of Canada, all in Britain.
Richard Bennett is the only PM to die and be buried outside of Canada.
There has never been a year in which more than one Prime Minister has died.
The closest time between the death of two Prime Ministers is the 210 days between the death of Lester B. Pearson on December 27, 1972, and Louis St. Laurent on July 25, 1973.
The longest time between the death of two Prime Ministers is the 21 years and 43 days between the death of John Diefenbaker on August 16, 1979, and Pierre Trudeau on September 28, 2000.
Only one day - October 30 - is the death day of more than one Prime Minister. John Abbott died October 30, 1893, and Charles Tupper died October 30, 1915.
Wilfrid Laurier died earliest in the calendar year, on February 17, 1919. Lester B. Pearson died latest in the calendar year, on......