Election Returns for New Salem Precinct in Sangamon County, Illinois, 5 November 1832 (Legislative Digital Edition)
Abraham Lincoln to Alden Hull, 14 February 1843 (Congressional Digital Edition)
Abraham Lincoln to Mark Carley, 25 February 1858 (Campaign Digital Edition)
Abraham Lincoln to Thomas A. Marshall, 23 April 1858 (Campaign Digital Edition)
Thomas A. Marshall to Abraham Lincoln, 1 May 1858 (Campaign Digital Edition)
Andrew McCallen to Abraham Lincoln, 12 June 1858 (Campaign Digital Edition)
Abraham Lincoln to Andrew McCallen, 19 June 1858 (Campaign Digital Edition)