gatherer vs procurator

gatherer

noun
  • A person who collects rent or taxes. 

  • A person who gathers things. 

  • A workman who collects molten glass on the end of a rod preparatory to blowing. 

  • An attachment to a sewing machine for making gathers in the cloth. 

procurator

noun
  • A tax collector. 

  • The governor of a small imperial province. 

  • A legal officer who both investigates and prosecutes crimes, found in some inquisitorial legal systems, particularly communist or formerly communist states – see public procurator 

  • An agent or attorney. 

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