Raymond Venimore Jack Butt FRAS (26 February 1941 – 23 March 2018) was a British schoolteacher and fellow of the Royal Astronomical Society. An accomplished rower and coach, he twice won the Boston rowing marathon. He was a member of the Stewards' Enclosure at Henley Royal Regatta for nearly 50 years.
He was said to be able to recite pi to 3,500 places and to have once memorised the entire British railway timetable. He formed a large collection of railway tickets and in 1995 published a directory of "every station, halt, platform and stopping place on the British passenger network".[1]