Canadian Secretaries of State for External Affairs

1. Charles Murphy under Laurier May 19 1909 - October 6 1911
2. William James Roche under Borden October 10 1911 - April 1 1912
3. Robert Laird Borden as PM April 1 1912 - July 9 1920
4. Arthur Meighen as PM July 10 1920 - December 29 1921
5. William Lyon Mackenzie King as PM December 29 1921 - June 28 1926
Arthur Meighen (2nd time) as PM June 29 1926 - September 25 1926
William Lyon Mackenzie King (2nd time) as PM September 25 1926 - August 7 1930
6. Richard Bedford Bennett as PM August 7 1930 - October 23 1935
William Lyon Mackenzie King (3rd time) as PM October 23 1935 - September 3 1946
7. Louis St. Laurent under King September 4 1946 - September 9 1948
8. Lester B. Pearson under King September 10 1948 - November 15 1948
Lester B. Pearson (cont'd) under St. Laurent November 15 1948 - June 20 1957
9. John Diefenbaker as PM June 21 1957 - September 12 1957
10. Sidney Earle Smith under Diefenbaker September 13 1957 - March 17 1959
* John Diefenbaker (2nd time) (Acting) as PM March 19 1959 - June 3 1959
11. Howard Green under Diefenbaker June 4 1959 - April 21 1963
12. Paul Martin, Sr under Pearson April 22 1963 - April 20 1968
13. Mitchell Sharp under Trudeau April 20 1968 - August 7 1974
14. Allan MacEachen under Trudeau August 8 1974 - September 13 1976
15. Donald Jamieson under Trudeau September 14 1976 - June 3 1979
16. Flora MacDonald under Clark June 4 1979 - March 2 1980
17. Mark MacGuigan under Trudeau March 3 1980 - September 9 1982
Allan MacEachen (2nd time) under Trudeau September 10 1982 - June 29 1984
18. Jean Chrétien under Turner June 30 1984 - September 16 1984
19. Joe Clark under Mulroney September 17 1984 - April 20 1991
20. Barbara McDougall under Mulroney April 21 1991 - June 24 1993
21. Perrin Beatty under Campbell June 25 1993 - November 3 1993
22. André Ouellet under Chrétien November 4 1993 - May 12 1995
In 1995, the post was replaced by the Minister of Foreign Affairs. (List)

See other lists of incumbents