Herbert Hoover actually said...
AT THE MOMENT of Your Majesties' departure from the United States, I wish to express to Your Majesty and to Queen Rambai Barni my pleasure and that of Mrs. Hoover that Your Majesties chose to visit this country and that you gave us the pleasure of your visit to Washington.
Context
Message to King Prajadhipok of Siam on His Departure From the United States.
07/28/1931