Lincoln writes to Third Auditor of U.S. offering proof of horse lost by John W. Warnsing in Black Hawk War. He explains that Warnsing has sold his claim to Thomas Epperson and asks that letter enclosing draft be sent to him rather than to Warnsing or Epperson.Abraham Lincoln to the Third Auditor of the United States Treasury, 9 September 1837, CW, 1:100-1.