US National Archives
Nara: Charters of Freedom: The Civil War: Union Sealed in Blood
Website on U.S. History uses primary document material to explain the importance of the Battle of Antietam and the high stakes of the Civil War.
War Times Journal
War Times Journal: Reminiscences of the Civil War by John B. Gordon
An online excerpt from the memoirs of Confederate General John B. Gordon who fought at the Battles of Bull Run, Antietam and Gettysburg. The account gives an insight into the mindset of the Confederate leaders during the Civil War.
War Times Journal
War Times Journal: From Manassas to Appomattox: Memoirs of James Longstreet
An online edition of the famous Confederate general's wartime memoirs. He fought in such battles as Bull Run, Antietam, Fredericksburg, Gettysburg and more.
War Times Journal
War Times Journal: Advance and Retreat by John Bell Hood
Selections from the wartime memoirs of Confederate General John B. Hood who served under Lee, Longstreet and other famous Confederate officers.