Abraham Lincoln to William B. Preston, 20 April 1849 (Campaign Digital Edition)

Nathan C. Geer to Abraham Lincoln, 26 July 1858 (Campaign Digital Edition)

Charles W. Michael and William Proctor to Abraham Lincoln, 29 July 1858 (Campaign Digital Edition)

Abraham Lincoln to Charles W. Michael and William Proctor, 2 August 1858 (Campaign Digital Edition)

Nathan C. Geer to Abraham Lincoln, 2 August 1858 (Campaign Digital Edition)

William Proctor to Abraham Lincoln, 6 August 1858 (Campaign Digital Edition)

Alexander Sympson to Abraham Lincoln, 6 August 1858 (Campaign Digital Edition)

Abraham Lincoln to Alexander Sympson, 11 August 1858 (Campaign Digital Edition)