Logan & Lincoln participate in four cases in the Sangamon County Circuit Court. In the case of Wagoner v. Porter et al., Logan & Lincoln represent plaintiff George Wagoner and ask the court's permission to take the deposition of William Porter, a defendant; the court grants their request. Logan & Lincoln represent the petitioner, Henry Dishon of Union County, in a bankruptcy case, In re Dishon, scheduled for a hearing before the U. S. District Court. Decree, 2 April 1842, Wagoner v. Porter et al., Record G, 340, Sangamon County Circuit Court, Illinois Regional Archives Depository, University of Illinois at Springfield; Sangamo Journal (Springfield, IL), 18 March 1842, 4:7.

Lincoln writes a petition to Illinois governor Thomas Carlin, requesting clemency for Michael Hill of Sangamon County, who was convicted of manslaughter in the death of Hill's neighbor, Mr. Lewis. Lincoln, along with 158 others, including all of the jurors from the case, sign the petition. In the petition, Lincoln describes Hill as "an elderly, respectable, and peaceful citizen, with a large and respected family." Petition for Pardon of Michael Hill, 2 April 1842, CW, 1:283-84; Illinois Register (Springfield), 22 October 1841, 2:1.