Complex sentence: Couch, who pronounced his name "Coach", was born at the village of South East in Putnam County, New York, and graduated from the United States Military Academy in 1846, placing 13th out of 59 cadets.
Split into simpler sentences: Couch, who pronounced his name "Coach", was born at the village of South East in Putnam County, New York. He graduated from the United States Military Academy in 1846, where he ranked 13th out of 59 cadets.