Harry MacElhone
Harry MacElhone of Harry's Bar, Paris, and formerly of Ciro's Club, London. MacElhone also worked at the Plaza in New York before that.
When did Harry's Bar, Paris Open?
"According to further legend, Harry's New York Bar was opened in 1911, 1923 or 1924. It was the location of the world's first Bloody Mary cocktail in 1921, and of the first hot dog served in France, in 1925. In less doubt is the name of Harry MacElhone, who took over the existing New York Bar in the Rue Daunou near the Opéra, most likely in 1911 or 1912 (based on the sign in the window in 2001). The bar is famous for the invention of forty other cocktails."
"The start of the Harry's tradition goes back to 1923, when a Scott named Harry MacElhone, fresh from a stint as bartender at Ciro's Club in London, took over what was known as the New York Bar in Paris."
"In 1923, Harry MacElhone bought the New York Bar at 5, Rue Daonou, Paris, and stuck his monicker on the front of it."