What U.S. Presidents have served two separate terms?

Washington, Jefferson, Madison, Monroe, Jackson, Grant, Cleveland, Wilson, Eisenhower, Reagan and Clinton have served two complete terms, as will GW Bush if he stays in office another year. In addition, FD Roosevelt served three terms and part of a fourth. Lincoln, McKinley and Nixon were elected to second terms but failed to complete them due to death or resignation. T Roosevelt and Truman each served the greater part of a term (after succeeding through death) and were then reelected to a full term in their own right. Coolidge and L B Johnson similarly won elected terms after serving the last year or so of another man's term.