Interesting book

Not cheap but there is a possibility of a paperback version in the future.
 

Ball's Bluff

 

Cannonading on the Potomac by Alfred W Thompson, c1869

The Battle of Ball's Bluff (also known as the Battle of Leesburg or Battle of Harrison's Island) was an early battle of the American Civil War fought in Loudoun County, Virginia, on October 21, 1861, in which Union Army forces under Major General George B. McClellan suffered a humiliating defeat.