To T. J. Henderson of Stark County, who had written Lincoln that he was not committed, and would vote to prevent slavery extension, Lincoln writes careful letter. "We shall have a terrible struggle with our adversaries. They are desperate, and bent on desperate deeds." With letter he sends copy of his Peoria speech. "You may have seen it before; or you may not think it worth seeing now." Abraham Lincoln to Thomas J. Henderson, 15 December 1854, CW, 2:293-94.