Data for Operational Histories of the U.S. Armories at Harpers Ferry, Virginia and Springfield, Massachusetts, 1795-1860.
Snell CW. 1980. Data for Operational Histories of the U.S. Armories at Harpers Ferry, Virginia and Springfield, Massachusetts, 1795-1860.. Denver Service Center
Extracts from Stephen V. Benet's Collection of Annual Reports and Other Important Papers Relating to the Ordnance Department, taken from Records of the Chief of Ordnance, Public Documents and from Other Sources (4 volumes, Washington, D.C., (1870-1890).