Abraham Lincoln to Hezekiah M. Wead, 22 January 1852 (Campaign Digital Edition)
Abraham Lincoln to Orville H. Browning, 26 January 1852 (Campaign Digital Edition)
Abraham Lincoln to Hezekiah M. Wead, 7 February 1852 (Campaign Digital Edition)
Abraham Lincoln to Nathaniel Coffin, 29 March 1856 (Campaign Digital Edition)