General Joseph K. Mansfield General Henry Warner Slocum General Alpheus S. Williams General John W. Geary
Battle of Antietam
History of the Twelfth Corps, Antietam
Source: Fox, William F. In Memoriam: Henry Warner Slocum. Albany, NY: J. B. Lyon, 1904. Also known as Slocum and His Men: The Twelfth Corps.