Receipt of John T. Stuart and Abraham Lincoln to David Prickett, 6 August 1839 (Legislative Digital Edition)
Abraham Lincoln to Joshua F. Speed, 13 April 1842 (Congressional Digital Edition)
Abraham Lincoln to Samuel D. Marshall, 14 July 1842 (Congressional Digital Edition)
Logan & Lincoln to Benjamin Briggs, 24 December 1842 (Congressional Digital Edition)
Abraham Lincoln to Jacob Ritter, 15 August 1851 (Campaign Digital Edition)
Abraham Lincoln to Lewis M. Hays, 11 November 1853 (Campaign Digital Edition)