The 55th Annual John P. Reilly Memorial St. Patrick’s Day Parade is all set for Sunday, March 1, in East Islip. The parade steps off at 2 p.m., starting at the East Islip Public Library at 381 East Main Street. It then heads west on Main Street to Irish Lane. The 2020 Grand Marshal is Tom Davis, who’s an immediate past president of the Ancient Order of the Hibernians Division 7, East Islip, which organizes the parade. The Ladies Aide to the Grand Marshal is Cathie Norton Doherty, the incoming president of the Lady’s Ancient Order of the Hibernians, East Islip…