|←Author Index: Po||Horace Porter
|United States soldier and diplomat. He served as a general in the Union Army during the American Civil War, and as personal secretary to President Grant (1869-1872).|
- “Grant, Ulysses S.,” Appletons' Cyclopædia of American Biography. New York: D. Appleton and Co., 1892.
- “Ulysses S. Grant” in The Presidents of the United States, 1789-1914, 1914.
Some or all works by this author are in the public domain in the United States because they were published before January 1, 1923.
The author died in 1921, so works by this author are also in the public domain in countries and areas where the copyright term is the author's life plus 80 years or less. Works by this author may also be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.