Anticipating that Douglas may go to Washington and contest Stuart's seat in Congress, five Springfield Whigs ask editor of Chicago "American" to forward poll book information on illegal votes for Douglas. Lincoln, Speed, Baker, Matheny, and Milton Hay sign letter.Abraham Lincoln to the Editor of the Chicago American, 24 June 1839, CW, 1:151-52.

Springfield Board of Trustees appoints Lincoln to succeed Samuel H. Treat on town board. Springfield Board of Trustees Minutes, 1838-1840, Illinois State Archives, Springfield, IL.

Lincoln writes and signs declaration in George Stewardson & John W. Shoemaker v. Erskine Douglas. He signs praecipe and bond in John N. Lane & Webb v. Weber.Herndon-Weik Collection, Library of Congress, Washington, DC.