Lincoln writes and files in Sangamon Circuit Court affidavit in Penny v. McHenry. He also writes bill of exceptions and certifies transcript in case. He writes and signs "Lincoln & Herndon" to joinder in pleas in Husband v. Elder. Herndon-Weik Collection, Library of Congress, Washington, DC.

[Illinois Supreme Court convenes at Springfield. Illinois Journal, 9 December 1851.]