Simplify the following text for a Grade 7 native English-speaking person.
Original: A direct descendant of the revolutionary American officer William Prescott , William H. Prescott spent his childhood and adolescence in Boston , Massachusetts .
Simplified: Prescott 's grandfather was William Prescott , a soldier who fought for the United States in the American Revolutionary War . Prescott grew up in Boston , Massachusetts , which is a city on the east coast of the United States .