One hundred and fifty years ago today, James H. Williamson fell at the Battle of South Mountain in Maryland. As the Army of the Potomac pursued the Army of Northern Virginia through Maryland, they clashed over three mountain passes – Crampton’s, Turner’s, and Fox’s Gaps. Under the command of Major General George McClellan, the Union army forced General Robert E. Lee’s army into retreat but did not pursue them quickly. Three days later, the armies would clash again in a much better known engagement, the Battle of Antietam.
The Battle of South Mountain, Civil War Trust.
South Mountain, CWSAC Battle Summaries.