ancestor ancestors announcer antecedent antecedents ascendants avant-garde bellwether buccinator bushwhacker elders explorer fathers forebear forefathers foregoer forerunner front runner frontiersman fugleman grandfathers grandparents groundbreaker guide harbinger herald innovator lead runner leader messenger pathfinder patriarchs pioneer point precedent precursor predecessor predecessors progenitors scout stormy petrel trailblazer trailbreaker vanguard vaunt-courier voortrekker