Theodore Roosevelt 1901–1909
	William Howard Taft 1909–1913
	Woodrow Wilson 1913–1921
	Warren G. Harding 1921–1923
	Calvin Coolidge 1923–1929
	Herbert C. Hoover 1929–1933
	Franklin D. Roosevelt 1933–1945
	Harry S. Truman 1945–1953