Who renounced his American citizenship and wrote a play with a cat named "Carbucketty"?
Carbucketty: Carbucketty is a character from the musical "Cats". Carbucketty:  The name was one of T. S. Eliot's ideas for cat names, for a "knockabout cat". T. S. Eliot:  He eventually became a British subject in 1927 at the age of 39, renouncing his American citizenship.
T. S. Eliot