Charlie Nagreen
…Charles R. Nagreen (2 May 1870 – 5 June 1951), known as "Hamburger Charlie", was an American claimant to the title of inventor of the hamburger. Born in Hortonville, Wisconsin, Nagreen was a 15-year-old vendor at the 1885 Seymour Fair. After not experiencing success selling meatballs, he had an idea. Knowing that the visitors…