Question: What was the name of the man, who was billed by the coiner of the phrase "There's a sucker born every minute" as "Boy Lightning Calculator"?
Sentence (from "William S. Hutchings"): William Street Hutchings, (January 7, 1832 - August 25, 1911) also known as Professor Hutchings and the Lightning Calculator, was a 19th-century math prodigy and mental calculator who P. T. Barnum first billed as the "Boy Lightning Calculator".
Relevant evidence: Yes