backwoodsman vs clodhopper

backwoodsman

noun
  • An uncivilized person. 

  • A person who is acclimated to living in a forest area that is far removed from civilization or modern conveniences. 

  • A Peer who is seldom present in the House of Lords of the United Kingdom Parliament, who may be encouraged to attend when a very important vote is expected. 

clodhopper

noun
  • A clumsy or foolish person. 

  • Any kind of shoe. 

  • A strong shoe for heavy-duty use, a boot. 

  • A peasant or yokel. 

  • Wheatear; any of various passerine birds. 

  • United States Navy ankle length work shoes, distinct from dress shoes or combat boots. 

How often have the words backwoodsman and clodhopper occurred in a corpus of books? (source: Google Ngram Viewer )