Annual report of Captain A. A. Humphreys, topographical engineer, in charge of Office of Explorations and Surveys, War Department, December, 1858.
Humphreys, A. A. (Andrew Atkinson), 1810-1883.; Ives, Joseph Christmas, d. 1868.; Pope, John, 1822-1892.; Warren, Gouverneur Kemble, 1830-1882.; United States. Office of Exploration and Surveys., Washington, D.C.: s.n., 1859.