Lincoln; An Account of his Personal Life, Especially of its Springs of Action as Revealed and Deepened by the Ordeal of War

by Nathaniel W. Stephenson

The United States. By various authors. 1903.

Miss Nicolay. Personal Traits of Abraham Lincoln. By Helen Nicolay. 1912.

N. and H. Abraham Lincoln: A History. By John G. Nicolay and John Hay. 10 vols. 1890.

N. P. Official Records of the Union and Confederate Navies. First series. 27 vols. 1895-1917.

O. P. Official Records of the Union and Confederate Armies. 128 vols. 1880-1901.

Outbreak. The Outbreak of the Rebellion. By John G. Nicolay. 1881.

Own Story. McClellan's Own Story. By George B. McClellan. 1887.

Paternity. The Paternity of Abraham Lincoln. By William Eleazer Barton. 1920.

Pearson. Life of John A. Andrew. By Henry G. Pearson. 2 vols. 1904.

Pierce. Memoirs and Letters of Charles Sumner. By Edward Lillie Pierce. 4 vols. 1877-1893.