Lincoln is appointed guardian for infant heirs of Dr. Jacob M. Early, captain of his company in Black Hawk War. Also as guardian, of William, Henry, and John Batterton, Lincoln files guardian's answer in T. M. Suter v. Thomas W. Sparks et al. Lincoln's survey of land (17.72 acres) involved in case of Butler v. Tilford et al. is accepted by court, and as commissioner, Lincoln deeds land to Butler. Judge Treat had appointed Lincoln at November 1839 term of Sangamon Circuit Court.Record; Deed Record, Book P.

Lincoln swears affidavit in Manning v. Morgan et al.Herndon-Weik Collection, Library of Congress, Washington, DC.