Abraham Lincoln to James K. Polk, 17 September 1847 (Congressional Digital Edition)
Fragment of Unknown to Abraham Lincoln, 28 December 1847 (Congressional Digital Edition)
Abraham Lincoln to Richard S. Thomas, 1 January 1848 (Congressional Digital Edition)
William B. Warren to Abraham Lincoln, 1 January 1848 (Congressional Digital Edition)
George S. Fisher to Abraham Lincoln, 4 January 1848 (Congressional Digital Edition)