In response to inquiry from governor, auditor, and treasurer of Illinois, Lincoln and Logan write legal opinion as to official duty under recent act "in relation to the payment of the principal and interest of the State debt." Abraham Lincoln to William H. Bissell, Jesse K. Dubois and James Miller, 28 May 1859, CW, 3:381-83.

He files declaration in Gaylord, Son & Co. v. Lansing & Ostrom in U.S. Circuit Court. Files.