Matthew S. Marsh to George M. Marsh, 17 September 1835 (Legislative Digital Edition)
Abraham Lincoln to Joshua F. Speed, 18 May 1843 (Congressional Digital Edition)
Abraham Lincoln to Mary Lincoln, 16 April 1848 (Congressional Digital Edition)
Separate Answer of Abraham Lincoln in Oldham & Hemingway v. Lincoln et al., 27 May 1853 (Campaign Digital Edition)