Includes journals, orders, reports and miscellaneous military documents. Material includes journals and diaries of expeditions in western territories (1868, 1878, 1879). Also, manuscript and printed field, general, and special orders (1868-1888) and both manuscript and printed reports (1866-1889). Also miscellaneous military documents, such as endorsements, Heliograph Department Reports, published reports on military careers and services of Grierson and adjutant Samuel L. Woodward, and rosters for the Department of Arizona.