WORCESTER - Thousands gathered Sunday afternoon to watch the annual Worcester County St. Patrick’s Parade held on Park Avenue. Decked in green, many cheered as city officials, first responders, community organizations, marching bands, Irish dancers and others paraded past them. Representation from Our Lady of the Angels Elementary School, St. Peter Central Catholic Elementary School, Knights of Columbus councils and Worcester County Catholic Charities’ Mercy Centre were among those in the parade.