fieldling vs woolly back

fieldling

noun
  • A dweller or inhabitant of the fields; countryman; farmer. 

woolly back

noun
  • Any unsophisticated person from the countryside. 

  • A New Zealander. 

  • A non-Liverpudlian person who travels to Liverpool, especially to work at the docks. 

  • A Welsh person. 

  • A person from the area surrounding Liverpool such as Skelmersdale, St. Helens, Southport, Wigan, Widnes, and the Wirral. 

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