Madison, James James Madison, Jr. (March 16, 1751 - June 28, 1836), born in Virginia Colony, was the fourth President of the United States and is called the "Father of the Constitution," inasmuch as he was instrumental in the drafting of that document. His first job was serving in the Virginia State Legislature. His first-hand experience witnessing the persecution of Baptist preachers in Virginia, which was an Anglican Church state, inspired him to work with Jefferson to draft the Virginia Statute for Religious Freedom, which was the document upon which the First Amendment was based.
 
 
Recommended Resources
American Presidents: James Madison
Delves into the life and presidency of James Madison, his early life, his time in the Continental Congress, politics, presidency and his life after his terms were expired.
http://www.american-presidents.com/james-madison/
The official website of James Madison's home, Montpelier, devotes a section to President Madison and his wife, Dolley, and explains his roles in the drafting of the Constitution, the Bill of Rights and his work within his state of Virginia, and the national government to champion religious freedom.
http://www.montpelier.org/
The White House web site offers the official biography of James Madison, the Father of the Constitution, his biography, and his presidential terms. Additionally offers details about his wife, First Lady Dolley Madison.
http://www.whitehouse.gov/about/presidents/jamesmadison/