Robert Marshall Utley, Frontier regulars: the United States Army and the Indian, 1866-1891 (1984) p. 206 onlineArchived 2016-04-28 at the Wayback Machine
Reports of the Otis Conference, 3 April 1873; and Otis to Odeneal, 11 April 1872. [1]Archived 2014-05-29 at the Wayback Machine
Robert Marshall Utley, Frontier regulars: the United States Army and the Indian, 1866-1891 (1984) p. 206 onlineArchived 2016-04-28 at the Wayback Machine