Abstract The Nineteenth-century American military collection is an artificial collection that contains 1.6 linear feet of American military records spanning the period 1846-1903. The bulk of the collection dates from the American Civil War (1861-1865). Additional records are from the Reconstruction period (1865-1877) and the remainder of the nineteenth century. There are also five items pertaining to the Mexican War (1846-1848) and two documents from the U.S. Army Corps of Topographical Engineers...