Abraham Lincoln to Simeon Ryder, 16 February 1844 (Congressional Digital Edition)
Declaration in Trustees of Township 16N, Range 1E v. Prather, [14 February 1852] (Campaign Digital Edition)
Abraham Lincoln to William D. Briggs, 19 March 1853 (Campaign Digital Edition)
Lewis W. Ross and George W. Stipp to Abraham Lincoln, 25 March 1853 (Campaign Digital Edition)