A Bill to Extend Corporate Powers of the President and Trustees of the Town of Springfield, [17 July 1837] (Legislative Digital Edition)
Public Notice of an Election for Trustees in the City of Springfield, 18 March 1840 (Legislative Digital Edition)
Amendment to A Bill to Amend An Act to Incorporate the City of Springfield, Approved February 3, 1840, [17 February 1841] (Legislative Digital Edition)
Abraham Lincoln to Samuel Briggs, 29 September 1857 (Campaign Digital Edition)