Orion Clemens and his wife had settled there in June of 1855, Sam, and younger brother Henry, helped Orion publish the Keokuk Journal out of a building at 202 Main Street. Sam lived at First and Johnson Streets. By late 18i55 Sam was across the river in Warsaw, Illinois working a for another newspaper. By the fall of 1856, Sam had left for Cincinnati. Orion departed Keokuk for Nevada but eventually returned to stay in 1872.
Interview 34 January 1885 Fort Madison (Iowa) Democrat; rpt Iowa Journal of History and Politics 27 (October 1929): 27-32 Included in "Mark Twain: The Complete Interviews" (#34)