Here's a bit from Wikipedia. no idea the source of the list, though.
Famous pipe smokersA number of real and fictional persons are strongly associated with their habit of pipe smoking.
Albert Einstein was known for smoking a pipe. He once said, "I believe that pipe smoking contributes to a somewhat calm and objective judgment in all human affairs.[5]
Earl Bertrand Russell lived to age 98 and remained active to the end.
Sherlock Holmes is explicitly described as a pipe smoker.[6]
Another allegedly fictional character, St. Nicholas alias Santa Claus, is described thus (1839): "The stub of a pipe he held clenched in his teeth".
Joseph Stalin with a pipe was a common image: "Photos of him appeared daily in the Soviet press, now in genial pipe-smoking profile, now walking with his comrades..."[7]
J. R. R. Tolkien loved pipe smoking; The Hobbit and The Lord Of The Rings have several detailed scenes of characters engaging in it, and even describe distinctive blends of manufactured pipe tobacco products.
Sandro Pertini (President of the Italian Republic 1978-85) lived to age 93.