Question: In what year was the English poet, writer, and broadcaster who described himself in "Who's Who" as a "poet and hack", and had a poem included in the 1956 book "Noblesse Oblige: An Enquiry Into the Identifiable Characteristics of the English Aristocracy", appointed Poet Laureate of the United Kingdom?
Sentence (from "Noblesse Oblige (book)"): The anthology comprises four brief essays by Nancy Mitford, Alan S. C. Ross, “Strix” and Christopher Sykes, a letter by Evelyn Waugh, and a poem by John Betjeman.
Relevant evidence: Yes