Stick vs helmsman

Stick

noun

  • A member of the Official IRA. 

name

  • The Chapman Stick, an electric musical instrument devised by Emmett Chapman. 

helmsman

noun

  • A member of a ship's crew who is responsible for steering. 

  • A leader. 

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