Colin Dexter's protagonist was Detective Chief Inspector (Endeavour) Morse, in many novels and the TV series where he was played by John Thaw. Morse was named after the polymath crossword puzzle enthusiast Sir Jeremy Morse, on the back of whose authoritative chess tome Chess Problems: Tasks & Records it is written: "In his spare time he has pursued a career in banking, which included the Chairmanship of Lloyds Bank from 1977 to 1993."
But sidekick Sgt Lewis (played by Kevin Whateley in Morse and later in his own TV series) was named after another rival clue-setter, Mrs B. Lewis. Is anything more known about Mrs Lewis' life and accomplishments?
See the article Inspector Morse on Wikipedia.