May, S. J.: Memoirs: Consisting of Autobiography and Selections from his Diary and Correspondence. Boston, 1873.
May, S. J.: Some Recollections of our Anti-Slavery Conflict. Boston, 1869.
Morse, J. T., Jr.: Abraham Lincoln. 2 vols. Boston, 1893.
Morse, J. T., Jr.: John Quincy Adams. Boston, 1882.
Nicolay, J. G. and Hay, J.: Abraham Lincoln: A History. 10 vols. New York, 1890.
Nicolay, J. G. and Hay, J. [Eds.]: Complete Works of Abraham Lincoln. 2 vols. New York, 1894.
Nixon, O. W.: How Marcus Whitman Saved Oregon. Chicago, 1895.
Ormsby, R. McK.: History of the Whig Party. Boston, 1860.
Parker, J.: Personal Liberty Laws. Boston, 1861.