Which state is the birthplace of the most U.S. presidents?

In which state was George W. Bush born? In which state was Harry S. Truman born? In which state was Theodore Roosevelt born? In which state was Lyndon B. Johnson born? Which state is nicknamed the "Mother of Presidents"? What was the name of George Washington's plantation home? What was the name of Thomas Jefferson's home in Virginia? What was the name of Andrew Jackson's home in Tennessee?