Someone sent me an email showing pictures of Queen Elizabeth with 11 US presidents. Here she is in 1951, a year before ascending the throne. Karsh photographed all those presidents except Bush and Obama (the archive has photos of Herbert Hoover, Franklin D. Roosevelt, Harry Truman, Dwight D. Eisenhower, John F. Kennedy, Lyndon Johnson, Richard Nixon, Gerald Ford, James Carter, Ronald Reagan, George H. W. Bush and Bill Clinton).

Queen Elizabeth II, 1951 © Yousuf Karsh