planter vs stockman

planter

noun
  • The owner of a plantation. 

  • A box or pot for plants, usually large and standing on the floor. 

  • A machine used for planting seeds. 

  • One who plants something. 

  • Any of the early English or Scottish settlers, given the lands of the dispossessed Irish populace during the reign of Elizabeth I. 

stockman

noun
  • A man who raises or looks after livestock. 

  • A person who works in a stockroom. 

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