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Thomas Jefferson (1801-1809) - He was the third President of the United States, serving two terms from 1801 to 1809. Jefferson was a Founding Father, a political philosopher, and the principal author of the Declaration of Independence.
James Madison (1809-1817) - He was the fourth President of the United States, serving two terms from 1809 to 1817. Madison was also a Founding Father and is often referred to as the "Father of the Constitution" for his role in drafting the United States Constitution and the Bill of Rights.