Herbert Hoover actually said...

"I know that I speak for the American people when I express their universal pleasure at your successful flight over the South Pole."

"No, I haven't had a word. I am in hopes he will give you something to fill the papers with in the morning, successfully."

"We are proud of your courage and your leadership."

"Our thoughts include also appreciation of your companions in flight and your colleagues, whose careful and devoted preparation has contributed to your great success."