The Hartford Club is a private club at 46 Prospect Street in Hartford, Connecticut, and founded in 1873. Mark Twain is known as a past member The Hartford Club began as a union of local men's clubs amalgamated due to financial woes. It began admitting women members in the 1970s. Its present clubhouse, located at 46 Prospect Street, was designed in 1901 by Robert D. Andrews of Andrews, Jacques and Rantoul; i t was listed on the National Register of Historic Places in 1984 It opened on January 1, 1908.