Check of Abraham Lincoln to Reuben F. Ruth, 28 September 1857 (Campaign Digital Edition)
Abraham Lincoln to Gustave P. Koerner, 25 October 1857 (Campaign Digital Edition)
Maria L. Bullock to Abraham Lincoln, 28 November [1857] (Campaign Digital Edition)
Mark Hamilton to Lincoln & Herndon, 14 May 1858 (Campaign Digital Edition)
Charles D. Carr to Abraham Lincoln, 7 September 1858 (Campaign Digital Edition)