Abraham Lincoln to Nathaniel Coffin, 29 March 1856 (Campaign Digital Edition)
Theodore L. Wright to Abraham Lincoln, 23 January 1857 (Campaign Digital Edition)
Abraham Lincoln to Robert A. Kinzie, 5 January 1858 (Campaign Digital Edition)
Abraham Lincoln to Solon Cumins, 11 March 1858 (Campaign Digital Edition)
Thomas J. Turner to Abraham Lincoln, 27 July 1858 (Campaign Digital Edition)