Hammer vs Pirate

Hammer

noun
  • someone connected with West Ham Football Club, as a fan, player, coach etc. 

name
  • A surname. 

Pirate

noun
  • someone connected with Bristol Rovers Football Club, as a fan, player, coach etc. 

  • someone connected with any of a number of sports teams known as the Pirates, as a fan, player, coach etc. 

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