John Maxtone-Graham

John Maxtone-Graham is a cruise ship historian.

History
He was speaking aboard the Royalty Valhalla cruise ship and Bart watched him.

Behind the Laughter
(August 2, 1929 – July 6, 2015) was a well-known cruise ship speaker. He was the father of writer and executive producer for The Simpsons, Ian Maxtone-Graham.