M-3069 Abraham Lincoln Memorial Highway Association. "Historic Proofs and Data in Support of the Lincoln Way, being the Route Traveled by the Thomas Lincoln Family In Coming from Indiana to Illinois In the Year 1830 for Submission to the Governor of the State of Illinois and the Department of Public Works and Buildings of the State of Illinois by the Abraham Lincoln Memorial Highway Association, Inc. Greenup, Ill." Published by the Abraham Lincoln Memorial Highway Association, Inc., 1929, Sub- 2, Box: 33. James Wills Bollinger Papers, MsC0036. University of Iowa Special Collections. https://aspace.lib.uiowa.edu/repositories/2/archival_objects/6172 Accessed April 29, 2025.