Complex sentence: Halberstam was born in New York City and raised in Winsted, Connecticut, where he was a classmate of Ralph Nader, moving to Yonkers, New York and graduating from Roosevelt High School in 1951.
Split into simpler sentences: Halberstam was born in New York City and raised in Winsted, Connecticut, where he was a classmate of Ralph Nader. He moved to Yonkers, New York and graduating from Roosevelt High School in 1951.