Rutherford Birchard Hayes (18221893), U.S. president. Diary and Letters of Rutherford Birchard Hayes: Nineteenth President of the United States, vol. II, p. 272, ed. Charles Richard Williams, The Ohio State Archaeological and Historical Society, 5 vols. (1922-1926), Diary (May 20, 1862).
This resolution was made after he was out of sorts on a long, hot march and broken in the heat of battle.