Presidents and First Ladies Trivia

[Eva Elisabeth]

Excellent, Laurie, it was the Queen's visit in 2007. She has already met 12 US presidents in her life! I like this picture because of the horses, but Ronald Reagan looks a bit sacred...Was he a horse rider?
   
BTW, I've several autographs of Princess Ann who regularly participated the CHIO horse show (horse riders might know this contest).

Laurie, your prize is "Pomp and circumsance" played exclusively for you at your dinnertable by our brilliant orchestra that'll come over tonight. Better prepare some more desserts.

To tell the truth, this was just the "warm-up question" for the following:

In December 1974, Gerald Ford invited one famous guest due to a request of his son. Who was this guest? (Note: The visitor didn't come alone.)