Logan & Lincoln participate in twelve cases in the Sangamon County Circuit Court. In the case of Herndon v. Elkin et al., a land sale dispute, Logan & Lincoln represent Archer G. Herndon, the father of William H. Herndon, who became Lincoln's law partner in 1844. The court orders the defendants to pay Herndon $539.55. Logan & Lincoln, as attorneys for plaintiffs John G. Bassett and Darius North in North & Bassett v. State Bank of Illinois, present evidence to the jury. Before the jury can render a verdict, Logan & Lincoln agree to a judgment against their clients for the court costs. The parties involved in the case of Darling v. Reeves et al. agree to a change of venue from Sangamon County to Cass County. Lincoln serves as an attorney for the defense and opposes his law partner Stephen T. Logan, who represented the plaintiffs prior to forming a partnership with Lincoln. Logan & Lincoln represent plaintiffs Edward Crow and William D. Crow in Crow & Crow v. Crow et al., a dower and partition case. The court decrees that the partition and dower assignments should proceed as presented by Logan & Lincoln. John Carroll Power, Early Settlers of Sangamon County, Illinois (Springfield, IL: Edwin A. Wilson, 1876; reprint, Springfield, IL: Phillips Brothers, 1970), 372-73; Judgment, 11 April 1842, Herndon v. Elkin et al., Record G, 380-81; Judgment, 11 April 1842, North & Bassett v. State Bank of Illinois, Record G, 370; Decree, 11 April 1842, Darling v. Reeves et al., Record G, 371; Decree, 11 April 1842, Crow & Crow v. Crow et al., Record G, 375-76, all in Sangamon County Circuit Court, Illinois Regional Archives Depository, University of Illinois at Springfield.

Upon learning of Michael Hill's pardon by Governor Thomas Carlin, Judge Samuel H. Treat orders the release of Hill, who had been convicted of manslaughter. Earlier in the court's term, Lincoln wrote and signed a petition to Governor Carlin asking for Hill's release. Order, 11 April 1842, People v. Hill, Record G, 378, Sangamon County Circuit Court, Illinois Regional Archives Depository, University of Illinois at Springfield.Petition for Pardon of Michael Hill, 2 April 1842, CW, 1:283-84.