The Book of Lincoln. Compiled by Mary Wright Davis. New York: George H. Doran Company, 1919.
IX. Lincoln's Literary Style
Abraham Lincoln As a Man of Letters. By Luther Emerson Robinson, M.A. Chicago: The Reilly & Britton Co., 1918.
Lincoln's Literary Experiments. By John G. Nicolay. With a lecture and verses hitherto unpublished. Century Magazine, April, 1894.
The Evolution of Lincoln's Literary Style. By Prof. Daniel Kilham Dodge. Champaign and Urbana: University of Illinois Press, 1900.
X. The Religion of Abraham Lincoln
Religious Views of Abraham Lincoln. Compiled and published by Orrin Henry Pennell. The R. M. Scranton Co., Alliance, Ohio, 1899.
Brief Analysis of Lincoln's Character. By W. H. Herndon. A letter to J. E. Remsburg, September 10, 1887. Privately printed by H. E. Barker, Springfield, Ill. Edition limited to 50 copies.
A Card and a Correction. A Broadside on Lincoln's religion. By W. H. Herndon. Privately printed by H. E. Barker, Springfield, Ill. Edition limited to 75 copies.