M. Chris Bryan presents “The Union XII Corps During the Maryland Campaign”

The Union XII Corps formed in June 1862. The corps, which joined the Army of the Potomac only a week before Antietam was small, numbering just over 7,600 men. Easily overlooked, Army of the Potomac leadership and historians since have largely glossed over this corps’ contribution at Antietam. Nevertheless, this small corps ended Confederate attacks into the Miller Cornfield and East Woods, successfully defended the Dunker Church Plateau from Confederate assaults, and captured the West Woods, which had been the goal on the Federal right all morning.  

This talk will provide a brief overview of the period from the Battle of Cedar Mountain until the corps’ entry into Maryland, including its condition resulting from this period. The talk will then examine the XII Corps’ participation in the Maryland Campaign and its fighting at Antietam, including some new findings discovered through recent archival research.

Chris Bryan is a native of Greencastle, Pennsylvania. He earned a B.S. in History from the United States Naval Academy, an M.A. in Liberal Arts from St. John's College, Annapolis, and a Masters in Historic Preservation from the University of Maryland, College Park. The former Naval Aviator works as a Cultural Resource Manager in Southern Maryland. Cedar Mountain to Antietam is his first book. He has compiled and edited The Chancellorsville Campaign Papers, the first two volumes of which will be released in the coming weeks.