Queen Elizabeth II Has Met 12 U.S. Presidents

President Harry S. Truman met then-princess Elizabeth less than a year before she assumed the throne. Truman and Princess Elizabeth are shown in their motorcade following a reception ceremony at Washington National Airport Oct. 31, 1951. Truman welcomed Elizabeth and her husband, Prince Philip, Duke of Edinburgh, with the hope that "when you leave you will like us even better than when you came." (Bettmann/Corbis)