Abraham Lincoln to Joel A. Matteson, 10 January 1853 (Campaign Digital Edition)
Benjamin F. Jonas to Abraham Lincoln, 4 June 1857 (Campaign Digital Edition)
Alfred Hyde to Abraham Lincoln, 25 March 1858 (Campaign Digital Edition)
Abraham Lincoln to Daniel S. Dickinson, 3 August 1858 (Campaign Digital Edition)
Daniel S. Dickinson to Abraham Lincoln, 9 August 1858 (Campaign Digital Edition)