frontiersman (n.)

• ancestor
• announcer
• antecedent
• avant-garde
• backwoodsman
• bellwether
• buccinator
• bushman
• bushwhacker
• cracker
• explorer
• forebear
• forerunner
• forester
• fugleman
• groundbreaker
• guide
• harbinger
• herald
• hillbilly
• innovator
• leader
• messenger
• mountaineer
• pathfinder
• pioneer
• point
• precedent
• precursor
• predecessor
• redneck
• scout
• trailblazer
• vanguard
• woodman
• woodsman