Margaret LoPiccolo, 50, of Brooklyn Heights, died on May 8, 2001, of lung cancer. She attended St. Mary's in Roslyn. She graduated from Roslyn High School and the University of Southern Maine. A former teacher, Ms. LoPiccolo was most recently employed by Perrier Group. She was the wife of Joseph DeQuatro. Daughter of Madeline of NY, NY and Philip of Dix Hills. Sister of Anita, Andrea, Paul, Stephen and Philip.