Captain Isaiah Rynders (1804-January 3, 1885) was an American businessman, sportsman, underworld figure and political organizer for Tammany Hall. Founder of the Empire Club, a powerful political organization in New York during the mid-19th century, his "sluggers" committed voter intimidation and election fraud on behalf of Tammany Hall throughout the 1840s and 1850s.He held considerable influence in Tammany Hall for twenty-five years and was credited for delivering New York to James K.