Mauckport was the site of a small skirmish in July 1863 during "Morgan's Raid" in the American Civil War. Mauckport was where Morgan and his men, aided by the citizens of neighboring Brandenburg, Kentucky, crossed the Ohio River to start his raid in earnest. When he first attempted to cross, he was confronted by a small group of men from the Harrison County Legion, firing artillery from the shore and armed men aboard the riverboat Lady Pike. When Morgan returned fire with his own artillery the home guard quickly retreated back toward Corydon, leaving Mauckport undefended. Upon landing his army on the east side of Mauckport, Morgan burnt the steam boat Alice Dean. The citizens of Mauckport, having plenty of forewarning, abandoned the town and fled to the west until Morgan's army passed.