Jack O’Brien is a longtime teacher, coach and mentor. In a decade of coaching basketball at Charlestown High School, he led his teams to a record-breaking five state championships in six years. More important, during his tenure, nearly every one of his players who stayed with the Charletown program through his senior year went on to college. A graduate of Salem State College, Jack previously coached in Salem and his hometown of Medford. Irish America Magazine named him one of its Top 100 Irish-Americans. Jack is chair of our Mentoring Committee.