Table:
text: Minister of External Affairs (Sri Lanka)
List of Foreign Ministers
List of Foreign Ministers
Name_ Party Tenure Heads_of_Government Ministerial_title
Don Stephen Senanayake United National Party 24 September 1947 - 22 March 1952 Don Stephen Senanayake Minister of External Affairs and Defence
Dudley Senanayake United National Party 22 March 1952 - 12 October 1953 Dudley Senanayake Minister of External Affairs and Defence
John Kotelawala United National Party 12 October 1953 - 12 April 1956 John Kotelawala Minister of External Affairs and Defence
S. W. R. D. Bandaranaike Sri Lanka Freedom Party 12 April 1956 - 26 September 1959 S. W. R. D. Bandaranaike Minister of External Affairs and Defence

Question: What is the head of government for Don Stephen Senanayake under Foreign Minister (Sri Lanka)?