Joint Resolution of Illinois General Assembly to Abraham Lincoln, 19 February 1849 (Congressional Digital Edition)
Opinion regarding Pre-emption of Public Land, 6 March 1856 (Campaign Digital Edition)
Thomas Meharry to Abraham Lincoln, 6 April 1857 (Campaign Digital Edition)
Abraham Lincoln to Thomas Meharry, 21 April 1857 (Campaign Digital Edition)
Abraham Lincoln to Joseph W. Brackett, 18 May 1857 (Campaign Digital Edition)
Abraham Lincoln to Joseph W. Brackett, 27 November 1857 (Campaign Digital Edition)
Daniel G. Hay to Abraham Lincoln, 27 July 1858 (Campaign Digital Edition)