grazier vs herdswoman

grazier

noun
  • One who grazes cattle and/or sheep on a rural property. 

  • The owner of a large property on which sheep or cattle graze. 

herdswoman

noun
  • A woman who tends livestock, especially cows and sheep. 

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