There are several valuable resources for researching constitutional law and constitutional history. Among them are the following books:
The following links are to sources of information about American constitutional history.
The Avalon Project at Yale Law School, maintaining documents in Law, History, and Diplomacy.
“Basic Readings in American Democracy” including important documents, speeches, poems, and commentary from the colonial period forward, maintained by the State Department of the United States.
“The Collected Works of Abraham Lincoln” sponsored by the Abraham Lincoln Foundation.
“Abraham Lincoln Online.Org” edited by Rhoda Sneller.
“Daniel Webster: Dartmouth’s Favorite Son” maintained by Dartmouth College.
“Alexander Hamilton: The Man Who Made Modern America” maintained by the New York Historical Society.
“Biographical Outline of Dr. Martin Luther King, Jr.” including written excerpts from three speeches, maintained by the King Center.
“JFK in History: Civil Rights Context in the Early 1960s”, containing a link to President Kennedy’s speech of June 11, 1963, maintained by the John F. Kennedy Presidential Library and Museum:
“Forgotten Founding Fathers,” a series of biographical sketches of lesser-known founders: