Complex sentence: In November 1791, Harbison lived in western Pennsylvania with three small children while her husband accompanied General Arthur St. Clair at the disastrous Battle of the Wabash, otherwise known as St. Clair's Defeat and St. Clair's Shame.
Split into simpler sentences: In November 1791, Harbison lived in western Pennsylvania with three small children. Her husband accompanied General Arthur St. Clair to defeat at the Battle of the Wabash, otherwise known as St. Clair's Defeat and St. Clair's Shame.