Complex sentence: Wetherill graduated from West Point Military Academy in 1940, and was working there and residing in Highland Falls, New York, when his son Roderick Wetherill, Jr., was born on January 20,1942.
Split into simpler sentences: Wetherill graduated from West Point Military Academy in 1940. He was working there at West Point, and residing in Highland Falls, New York, when his son Roderick Wetherill, Jr., was born on January 20,1942.