Abraham Lincoln to Levi Davis, 4 April 1836 (Legislative Digital Edition)
Survey of Huron, Illinois, 21 May 1836 (Legislative Digital Edition)
Survey for the Sangamon County Commissioners' Court, 2 June 1836 (Legislative Digital Edition)
Survey of Albany, Illinois, 16 June 1836 (Legislative Digital Edition)
Fragment of Blair & Rives to Unknown, [1848] (Congressional Digital Edition)