alderman vs public servant

alderman

noun
  • A member of a municipal legislative body in a city or town. 

  • A long pipe for smoking. 

  • A potbelly, paunch. 

public servant

noun
  • Someone who labours for the public good; a convict assigned to work on public projects. 

  • A person employed by the government. 

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