The Inner Life of Abraham Lincoln: Six Months at the White House. By Frank B. Carpenter. New York: Hurd & Houghton, 1867.
Lincoln and Seward. By Gideon Welles. New York: Sheldon & Co., 1874.
Diary of Gideon Welles. Atlantic Monthly, 1909.
Greeley on Lincoln and Mr. Greeley's Letters. Edited by Joel Benton. New York: The Baker & Taylor Co., 1893.
Lincoln at Gettysburg. By Clark E. Carr. Chicago: A. C. McClurg & Co., 1906.
Gettysburg and Lincoln. By Henry Sweetser Burrage. New York: G. P. Putnam's Sons, 1906.
Lincoln's Gettysburg Address. By Orton H. Carmichael. New York: The Abingdon Press, 1917.
Fiftieth Anniversary of the Battle of Gettysburg. Report of the Commission on the Gettysburg Reunion. Harrisburg, Pa., 1915.
Recollections of Lincoln. By James Grant Wilson, with facsimiles of the Gettysburg and Second Inaugural Addresses. Putnam's Magazine, February, 1909.
The Gettysburg Address with Facsimile of the Manuscript. By John G. Nicolay. Century Magazine, 1894.